Granted Patent B2

US 12,264,167 · App. 18/051,679 · Granted Apr 1, 2025

Inventors: Jiping Fu (Danville, CA); Yan Lou (Pleasanton, CA); Yigang He (Newark, DE)

Assignee: NIKANG THERAPEUTICS, INC.

C07D519/00A61K31/5383A61P35/00C07D401/14C07D471/10C07D491/107

Abstract

Claims (39)

1. A method of making a compound of Formula (IC):

wherein:

A and E are independently selected from a bond, CH 2 , O, NH, S, and S(O) 2 ;

Z is hydrogen, alkyl, alkoxy, alkoxymethyl, methoxyalkoxymethyl, hydroxymethyl, halo, haloalkyl, haloalkoxy, cyano, cycloalkyl, heterocyclyl, heteroaryl (wherein cycloalkyl, heterocyclyl, and heteroaryl are optionally substituted with one to three halo), —O(alk) y R a , —O(alk)OR b , —S(O)R c , —S(O) 2 R d , —NR e C(O)R f , —NR g SO 2 R h , —OC(O)NR i R j , —C(O)NR k R m , —S(O) 2 NR n R o , —NR p R q , —NR r C(O)C(O)R s or —Y-M (wherein Y is bond, O, or SO 2 and M is alkyl, haloalkyl, cycloalkyl, heterocyclyl, or heteroaryl wherein alkyl, haloalkyl, cycloalkyl, heterocyclyl and heteroaryl are substituted with —O(alk) y R a , —O(alk)OR b , —S(O)R c , —S(O) 2 R d , —NR e C(O)R f , —NR g S2R h , —OC(O)NR i R j , —C(O)NR k R m , —S(O) 2 NR n R o , —NR p R q , or —NR r C(O)C(O)R s and cycloalkyl, heterocyclyl, and heteroaryl are optionally further substituted with 1 to 3 halo); wherein each y is 0 or 1, each alk is alkylene, and each R c , R d , R f , R h , and R s are independently alkyl, cycloalkyl, cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heteroaryl, or optionally substituted heteroaralkyl; and each R a , R b , R e , R g , R i , R j , R k , R m , R n , R o , R p , R q , R r , and R s are independently hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, hydroxyalkyl, alkoxyalkyl, aminoalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heteroaryl, or optionally substituted heteroaralkyl; or, independently of each other, each R i and R j , R k and R m , R n and R o , and R p and R q , together with the nitrogen atom to which they are attached form optionally substituted heterocyclyl;

R 1 , R 2 , R 3 , and R 4 are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, cyano, hydroxy, hydroxylalkyl, amino, and aminoalkyl;

or one of R 1 and R 2 , and R 3 and R 4 , when attached to the same carbon, combine to form oxo, alkyldienyl, 3 to 6 membered cycloalkylene, or 4 to 6 membered optionally substituted heterocyclylene;

R 5 and R 6 are independently selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, hydroxy, cyano, hydroxylalkyl, amino, and aminoalkyl, or wherein one of R 5 and R 6 is optionally substituted heterocyclyl and the other is selected from hydrogen, alkyl, cycloalkyl, halo, haloalkyl, haloalkoxy, alkoxy, hydroxy, cyano, hydroxylalkyl, amino, and aminoalkyl;

L is bond, O, S, S(O), S(O) 2 , or CR 7 R 8 where R 7 and R 8 are independently hydrogen or alkyl;

Z 1 is a group of formula (a):

wherein:

R 9 is hydrogen, alkyl, halo, hydroxy, amino, or haloalkyl;

R 10 is hydrogen, alkyl, halo, hydroxy, hydroxyalkyl, —CD 2 OH, alkylsulfoxide, alkylsulfonyl, amino, aminoalkyl, aminosulfonyl, aminocarbonyl, carboxy, cyano, or alkoxycarbonyl;

R 13 is hydrogen, alkyl, halo, hydroxy, amino, or haloalkyl;

R 14 is hydrogen, alkyl, or haloalkyl;

R 11 is selected from amino and aminoalkyl;

R 12 is selected from hydrogen, cyano, halo, alkyl, haloalkyl, alkoxy, haloalkoxy, cycloalkyl, aryl, heterocyclyl, and heteroaryl, where alkyl, cycloalkyl, aryl, heterocyclyl and heteroaryl are optionally substituted with one to three substituents independently selected from alkyl, halo, haloalkyl, haloalkoxy, alkoxy, and cyano;

or R 11 and R 12 together with the carbon atom to which they are attached form a ring of formula (c):

wherein:

e is 0, 1, or 2;

k is 0, 1, or 2 provided e+k is 1, 2, or 3;

q is 0, 1, or 2, or 3;

R 17 and R 18 are independently selected from hydrogen, alkyl, cycloalkyl, and haloalkyl;

each R 19 is independently selected from hydrogen, alkyl, halo, haloalkyl, haloalkoxy, alkoxy, hydroxy, cyano, alkylsulfoxide, alkylsulfonyl, oxo, cycloalkyl, optionally substituted heterocyclyl, and optionally substituted heteroaryl; or

when two R 19 groups are attached to the same carbon atom, the two R 19 groups together with the carbon atom to which they are attached form cycloalkylene or heterocyclylene;

ring D is absent and one of Q and W is CH 2 , O, S, S(O), S(O) 2 , or NH; and the other of Q and W is CH 2 ;

or a pharmaceutically acceptable salt thereof;

the method comprising:

reacting a compound of Formula 1-a with a compound of Formula 1-d or reacting a compound of Formula 1-c with a compound of Formula 1-e:

wherein X 1 is halogen; and M is a metal.

2. The method of claim 1 , wherein the reacting step is transition metal-catalyzed.

3. The method of claim 2 , wherein the transition metal comprises palladium.

4. The method of claim 3 , wherein reacting step further comprises bidentate phosphine.

5. The method of claim 4 , wherein the bidentate phosphine is xantphos.

6. The method of claim 1 , wherein the metal is potassium or sodium.

7. The method of claim 1 , wherein X 1 is bromine or iodine.

8. The method of claim 1 , wherein the compound of Formula (IC) is selected from the group consisting of:

9. The method of 1, wherein the compound of Formula (IC) is selected from the group consisting of:

10. The method of claim 1 , wherein the compound of Formula 1-a is ((6aS,8S)-4-iodo-6a,7,8,9-tetrahydro-6H-pyrido[3,2-b]pyrrolo[1,2-d][1,4]oxazin-8-yl)methanol:

11. The method of claim 1 , wherein the compound of Formula 1-a is ((6aS,8S)-4-iodo-6a,7,8,9-tetrahydro-6H-pyrido[3,2-b]pyrrolo[1,2-d][1,4]oxazin-8-ol:

Assignments (1)

Continuity (9)

References Cited (400)