Orexin receptor antagonists which are [

1. A compound of formula (I)

wherein the carbon atom at position 2 of the pyrrolidine ring is in absolute (S)-configuration;

R represents hydrogen or methyl;

ring A 3 represents a mew di-substituted 5-membered heteroarylene ring containing one, two or three heteroatoms; wherein at least one of said heteroatoms is nitrogen, and the remaining is/are independently selected from oxygen, sulfur and nitrogen;

ring A 2 represents aryl or 5- to 10-membered heteroaryl; wherein said aryl or 5- to 10-membered heteroaryl is independently unsubstituted, or mono-, di-, or tri-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, (C 3-6 )cycloalkyl, halogen, cyano, (C 1-3 )fluoroalkyl, (C 1-3 )fluoroalkoxy, hydroxy, (C 1-4 )alkoxy-(C 1-3 )alkyl, hydroxy-(C 1-3 )alkyl, —CO—(C 1-4 )alkyl, and (C 3-6 )cycloalkyl-oxy-; or

ring A 2 represents a 2,3-dihydro-benzo[1,4]dioxinyl, a 2,3-dihydro-benzofuranyl, or a benzo[1,3]dioxolyl group optionally di-substituted with fluoro; and

ring A 1 represents phenyl or 5- or 6-membered heteroaryl, wherein said phenyl or 5- or 6-membered heteroaryl independently is mono-, di-, or tri-substituted; wherein

one of said substituents is attached in ortho-position to the point of attachment of A 1 to the rest of the molecule; wherein said substituent is phenyl or 5- or 6-membered heteroaryl; wherein said phenyl or 5- or 6-membered heteroaryl substituent is independently unsubstituted, mono-, di-, or tri-substituted, wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxy;

and the other of said substituents, if present, is/are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxy;

provided that ring A 1 is not isoxazol-4-yl, substituted in position 5 with (C 1-4 )alkyl, attached to the rest of the molecule at position 4, and carrying said further ortho-substitutent in position 3;

with the exception of the compound (1,1′-biphenyl)-2-yl-{(S)-2-[3-(3-pyridinyl)-1H-1,2,4-triazol-5-yl]-1-pyrrolidinyl}-methanone;

or a pharmaceutically acceptable salt thereof.

2. The compound according to claim 1 ; wherein the ring A 3 is a meta di-substituted 5-membered heteroarylene ring selected from the group consisting of oxadiazol-diyl, triazol-diyl, isoxazol-diyl, oxazol-diyl, thiazol-diyl, pyrazol-diyl, imidazol-diyl, isothiazol-diyl, and thiadiazol-diyl;

or a pharmaceutically acceptable salt thereof.

3. The compound according to claim 1 ; which is also a compound of the formula (IV):

wherein the carbon atom at position 2 of the pyrrolidine ring is in absolute (S)-configuration;

wherein

R represents hydrogen or methyl;

the ring

represents a meta di-substituted 5-membered heteroarylene ring containing one, two or three heteroatoms at any of the positions X 1 , X 2 , X 3 , and/or X 4 ; wherein at least one of said heteroatoms is nitrogen, and the remaining, if present, is/are independently selected from oxygen, sulfur and nitrogen;

Ar 2 represents phenyl or 5- to 10-membered heteroaryl; wherein said phenyl or 5- to 10-membered heteroaryl is independently unsubstituted, or mono-, di-, or tri-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, (C 3-6 )cycloalkyl, halogen, cyano, (C 1-3 )fluoroalkyl, (C 1-3 )fluoroalkoxy, hydroxy, (C 1-4 )alkoxy-(C 1-3 )alkyl, hydroxy-(C 1-3 )alkyl, —CO—(C 1-4 )alkyl, and (C 3-6 )cycloalkyl-oxy-; or

Ar 2 represents a 2,3-dihydro-benzo[1,4]dioxinyl, a 2,3-dihydro-benzofuranyl, or a benzo[1,3]dioxolyl group optionally di-substituted with fluoro;

(R x ) m represents one or two optional substituents independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxy; and

Ar 4 represents phenyl or 5- or 6-membered heteroaryl; wherein said phenyl or 5- or 6-membered heteroaryl substituent is independently unsubstituted, mono-, di-, or tri-substituted, wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxyl;

with the exception of the compound (1,1′-biphenyl)-2-yl-{(S)-2-[3-(3-pyridinyl)-1H-1,2,4-triazol-5-yl]-1-pyrrolidinyl}-methanone;

or a pharmaceutically acceptable salt thereof.

4. The compound according to claim 3 ; wherein the ring

represents a group selected from the group consisting of [1,2,4]oxadiazol-3,5-diyl, [1,2,4]triazol-3,5-diyl, [1,2,4]triazol-1,3-diyl, 1H-pyrazol-3,5-diyl, imidazol-2,4-diyl, isoxazol-3,5-diyl, oxazol-2,4-diyl, oxazol-2,5-diyl, thiazol-2,4-diyl, [1,3,4]thiadiazol-2,5-diyl, and [1,3,4]oxadiazol-2,5-diyl;

or a pharmaceutically acceptable salt thereof.

5. The compound according to claim 4 ; wherein

Ar 4 is selected from the group consisting of unsubstituted triazolyl; unsubstituted pyrazolyl; unsubstituted oxazolyl; oxadiazolyl mono-substituted with methyl; unsubstituted pyridyl; unsubstituted pyrimidinyl; and unsubstituted or mono-substituted phenyl wherein the substituent is selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, and halogen; and

(R x ) m represents one or two optional substituents independently selected from (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxy;

or a pharmaceutically acceptable salt thereof.

6. The compound according to claim 4 ; wherein

Ar 4 is unsubstituted triazolyl; or unsubstituted pyrimidinyl; and

(R x ) m represents one or two substituents independently selected from (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, cyano, (C 1-3 )fluoroalkyl, and (C 1-3 )fluoroalkoxy;

or a pharmaceutically acceptable salt thereof.

7. The compound according to claim 3 ; wherein the group

is a group independently selected from the following groups A) to D):

or a pharmaceutically acceptable salt thereof.

8. The compound according to claim 2 ; wherein the ring A 2 represents

phenyl which is unsubstituted, or mono-, di-, or tri-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, (C 3-6 )cycloalkyl, halogen, (C 1-3 )fluoroalkyl, (C 1-3 )fluoroalkoxy; hydroxy, (C 1-4 )alkoxy-(C 1-3 )alkyl, and hydroxy-(C 1-3 )alkyl; or

a 2,3-dihydro-benzo[1,4]dioxinyl, a 2,3-dihydro-benzofuranyl, or a benzo[1,3]dioxolyl group which is optionally di-substituted with fluoro; or

6-membered heteroaryl; wherein said heteroaryl is independently unsubstituted, or mono-, or di-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, (C 3-6 )cycloalkyl, halogen, (C 1-3 )fluoroalkyl, (C 1-3 )fluoroalkoxy, and (C 3-6 )cycloalkyl-oxy-; or

8- to 10-membered heteroaryl; wherein said heteroaryl is independently unsubstituted, or mono-substituted; wherein the substituent is independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, and —CO—(C 1-4 )alkyl;

or a pharmaceutically acceptable salt thereof.

9. The compound according to claim 2 ; wherein ring A 2 represents

phenyl which is unsubstituted, or mono-, di-, or tri-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, (C 3-6 )cycloalkyl, halogen, (C 1-3 )fluoroalkyl, (C 1-3 )fluoroalkoxy; hydroxy, (C 1-4 )alkoxy-(C 1-3 )alkyl, and hydroxy- (C 1-3 )alkyl; or

2,3-dihydro-benzo[1,4]dioxin-5-yl, 2,3-dihydro-benzofuran-7-yl, benzo[1,3]dioxol-4-yl, benzo[1,3]dioxol-5-yl, or 2,2-difluoro-benzo[1,3]dioxol-5-yl; or

5- or 6-membered heteroaryl selected from pyridyl, pyrazolyl, and pyrazinyl; wherein said heteroaryl is independently mono-, or di-substituted; wherein the substituents are independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, halogen, (C 1-3 )fluoroalkoxy, and (C 3-6 )cycloalkyl-oxy-; or

8- to 10-membered heteroaryl selected from indolyl, pyrrolopyridyl, imidazothiazolyl, and indazolyl; wherein said heteroaryl is independently unsubstituted, or mono-substituted; wherein the substituent is independently selected from the group consisting of (C 1-4 )alkyl, (C 1-4 )alkoxy, and —CO—(C 1-4 )alkyl;

or a pharmaceutically acceptable salt thereof.

10. The compound according to claim 1 ; wherein the group A 3 -A 2 represents a group

independently selected from the following groups A) to H):

A): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

B): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

C): oxazol-2,4-diyl groups selected from:

D): oxazol-2,5-diyl groups selected from:

E): isoxazol-3,5-diyl groups selected from the groups:

F): [1,2,4]triazol-3,5-diyl groups selected from the groups:

G): imidazol-2,4-diyl groups selected from the groups:

H): 1H-[1,2,4]triazol-1,3-diyl groups selected from:

or a pharmaceutically acceptable salt thereof.

11. The compound according to claim 1 selected from the group consisting of:

{(S)-2-[3-(2-Cyclopropyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1H-Indol-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2,3-Dihydro-benzo[,4]dioxin-5-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1H-Indol-7-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1-Methyl-1H-pyrrolo [2,3-b]pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1-Methyl-1H-indol-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Isopropoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

1-(3-{5-[(S)-1-(5-Methyl-2-[1,2,3]triazol-2-yl-benzoyl)-pyrrolidin-2-yl]-[1,2,4]oxadiazol-3-yl}-indol-1-yl)-ethanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-biphenyl-2-yl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methoxy-biphenyl-2-yl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-oxazol-2-yl-phenyl)-methanone;

(4-Methyl-biphenyl-2-yl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-pyrazol-1-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-pyridin-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(2-Fluoro-3-methyl-6-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Methoxy-biphenyl-2-yl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-pyrazol-1-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

[3-Fluoro-2-(2H-pyrazol-3-yl)-phenyl]-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-oxazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyridin-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-oxazol-2-yl-phenyl)-methanone;

(4, 5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4, 5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4, 5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-isoxazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[4-(2-trifluoromethoxy-phenyl)-oxazol-2-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethyl-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethyl-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2,3-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2,3-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,3-dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,5-dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(5-methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(4-chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Methoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Ethoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(3-phenyl-[,2,4]oxadiazol-5-yl)-pyrrolidin-1-yl]-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(3-m-tolyl-[1,2,4]oxadiazol-5-yl)-pyrrolidin-1-yl]-methanone;

{(S)-2-[3-(3-Methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2,3-Dimethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(3-o-tolyl-[1,2,4]oxadiazol-5-yl)-pyrrolidin-1-yl]-methanone;

{(S)-2-[3-(3-Chloro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Chloro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Chloro-3-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Chloro-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Methoxymethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

[(S)-2-(3-Benzo[1,3]dioxol-4-yl-[1,2,4]oxadiazol-5-yl)-pyrrolidin-1-yl]-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-methyl-3-trifluoromethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Ethoxy-pyridin-4-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2,3-Dimethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1-Methyl-1H-indol-4-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Fluoro-6-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(1-Methyl-1H-indol-7-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Methyl-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Difluoromethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-fluoro-3-methyl-6-[1,2,3]triazol-2-yl-phenyl)-methanone;

Biphenyl-2-yl-{(S)-2-[3-(3-chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyrazol-1-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyridin-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-fluoro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-pyrazol-1-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-pyrazol-1-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-pyrazol-1-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[5-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(3,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-oxazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

Biphenyl-2-yl-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-m-Tolyl-oxazol-4-yl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(2-[1,2,3]Triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Fluoro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-pyrazol-1-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

[5-Fluoro-2-(2H-pyrazol-3-yl)-phenyl]-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(3,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(2-Oxazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4, 5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(2-Difluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyridin-2-yl-phenyl)-methanone;

(3,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-fluoro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyridin-2-yl-phenyl)-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-4-trifluoromethyl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(3,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(6-methyl-3-[1,2,3]triazol-2-yl-pyridin-2-yl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Chloro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Chloro-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-fluoro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(2-Ethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-[3-fluoro-2-(2H-pyrazol-3-yl)-phenyl]-methanone;

{(S)-2-[3-(3,4-Dimethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2,4-Dimethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-pyrimidin-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-pyrimidin-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,3-Dihydro-benzofuran-7-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-3-fluoro-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2,3-Dimethyl-phenyl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3,5-Dimethyl-phenyl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Methoxy-pyridin-3-yl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-isoxazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

[5-(3-Fluoro-phenyl)-2-methyl-thiazol-4-yl]-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,3,4]oxadiazol-2-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-chloro-2-methyl-phenyl)-[1,3,4]oxadiazol-2-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-pyrimidin-2-yl-phenyl)-methanone;

{(S)-2-[3-(2-Ethoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-pyrimidin-2-yl-phenyl)-methanone;

(4-Fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-fluoro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Ethoxy-pyridin-3-yl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,3-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,3-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,3-dimethyl-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,5-dimethyl-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,3-dimethyl-phenyl)-[l 1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2,5-dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2,5-Dimethyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(5-Methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(5-Methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(5-methoxy-2-methyl-phenyl)-1 [1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(5-methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(5-Methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(2-Methoxy-5-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(3-fluoro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(5-methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(3-methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Methoxy-2-methyl-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(2-[1,2,3]Triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Fluoro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(4-Chloro-6-methoxy-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Methoxy-phenyl)-1H-imidazol-2-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(5-phenyl-isoxazol-3-yl)-pyrrolidin-1-yl]-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(5-phenyl-isoxazol-3-yl)-pyrrolidin-1-yl]-methanone;

(4-Chloro-5-methoxy-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-isoxazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(2-Cyclobutoxy-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(2-Fluoro-3-methoxy-6-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(5-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(4,5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(2-Methoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone; and

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-[(S)-2-(1-phenyl-1H-[1,2,4]triazol-3-yl)-pyrrolidin-1-yl]-methanone;

or a pharmaceutically acceptable salt thereof.

12. The compound according to claim 1 selected from the group consisting of:

(5-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4, 5-Dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-2-methyl-pyrrolidin-1-yl}-(4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-2-methyl-pyrrolidin-1-yl}-(5-chloro-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-2-methyl-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone; and

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-2-methyl-pyrrolidin-1-yl}-(4-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[5-(3-Chloro-2-methyl-phenyl)-4H-[1,2,4]triazol-3-yl]-2-methyl-pyrrolidin-1-yl}-(5-chloro-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

(5-Methyl-biphenyl-2-yl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone; and

(4-Methyl-biphenyl-2-yl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

or a pharmaceutically acceptable salt thereof.

13. A pharmaceutical composition comprising, as active principle, one or more compounds according to claim 1 , or a pharmaceutically acceptable salt thereof, and at least one therapeutically inert excipient.

14. A method of treatment of diseases or disorders relating to orexinergic disorders selected from sleep disorders, anxiety disorders, addiction disorders, cognitive dysfunctions, mood disorders, or appetite disorders; comprising administering to a patient a pharmaceutically active amount of the compound as defined in claim 1 , or a pharmaceutically acceptable salt thereof.

15. The compound according to claim 3 ; wherein the group

represents a group independently selected from the following groups A) to H):

A): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

B): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

C): oxazol-2,4-diyl groups selected from:

D): oxazol-2,5-diyl groups selected from:

E): isoxazol-3,5-diyl groups selected from the groups:

F) [1,2,4]triazol-3,5-diyl groups selected from the groups:

G): imidazol-2,4-diyl groups selected from the groups:

H): 1H-[1,2,4]triazol-1,3-diyl groups selected from:

or a pharmaceutically acceptable salt thereof.

16. The compound according to claim 7 ; wherein the group

represents a group independently selected from the following groups A) to H):

A): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

B): [1,2,4]oxadiazol-3,5-diyl groups selected from the groups:

C): oxazol-2,4-diyl groups selected from:

D): oxazol-2,5-diyl groups selected from:

E): isoxazol-3,5-diyl groups selected from the groups:

F): [1,2,4]triazol-3,5-diyl groups selected from the groups:

G): imidazol-2,4-diyl groups selected from the groups:

H): 1H-[1,2,4]triazol-1,3-diyl groups selected from:

or a pharmaceutically acceptable salt thereof.

17. The compound according to claim 1 selected from the group consisting of:

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-3-yl]-pyrrolidin-1-yl}-methanone;

(5-Methoxy-4-methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[3-(2-trifluoromethoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-methanone;

{(S)-2-[3-(3-Chloro-2-methyl-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(4,5-dimethyl-2-[1,2,3]triazol-2-yl-phenyl)-methanone;

{(S)-2-[3-(3-Fluoro-2-methoxy-phenyl)-[1,2,4]oxadiazol-5-yl]-pyrrolidin-1-yl}-(5-methoxy-4-methyl-2-pyrimidin-2-yl-phenyl)-methanone;

(4-Methyl-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone; and

(4-Chloro-2-[1,2,3]triazol-2-yl-phenyl)-{(S)-2-methyl-2-[5-(2-trifluoromethoxy-phenyl)-4H-[1,2,4]triazol-3-yl]-pyrrolidin-1-yl}-methanone;

or a pharmaceutically acceptable salt thereof.

18. A method of treatment of diseases or disorders relating to orexinergic disorders selected from sleep disorders, anxiety disorders, addiction disorders, cognitive dysfunctions, mood disorders, or appetite disorders; comprising administering to a patient a pharmaceutically active amount of the compound as defined in claim 11 , or a pharmaceutically acceptable salt thereof.

19. A method of treatment of diseases or disorders relating to orexinergic disorders selected from sleep disorders, anxiety disorders, addiction disorders, cognitive dysfunctions, mood disorders, or appetite disorders; comprising administering to a patient a pharmaceutically active amount of the compound as defined in claim 12 , or a pharmaceutically acceptable salt thereof.

20. A method of treatment of diseases or disorders relating to orexinergic disorders selected from sleep disorders, anxiety disorders, addiction disorders, cognitive dysfunctions, mood disorders, or appetite disorders; comprising administering to a patient a pharmaceutically active amount of the compound as defined in claim 16 , or a pharmaceutically acceptable salt thereof.

21. A method of treatment of diseases or disorders relating to orexinergic disorders selected from sleep disorders, anxiety disorders, addiction disorders, cognitive dysfunctions, mood disorders, or appetite disorders; comprising administering to a patient a pharmaceutically active amount of the compound as defined in claim 17 , or a pharmaceutically acceptable salt thereof.