Pyrazolylphenyl and pyrrolylphenyl inhibitors of LTA4H for treating inflammation
View Patent ↗Two chemical genera of pyrazolylphenyl and pyrrolylphenyl derivatives are disclosed. They have the general formula: In these compounds ring (a) is a pyrazole or pyrrole; Q is selected from the group consisting of a direct bond, O, S, SO, SO 2 , NR 1 , CH 2 , CF 2 , and C(O); HET is a 4-7-membered saturated nitrogenous heterocycle; and taken together ZW is H or Z is (CH 2 ) 1-10 in which one or two (CH 2 ) may optionally be replaced by —O—, —NR 1 —, —SO—, —S(O) 2 —, —C(═O)— or —C═O(NH)—; and W is hydrogen, acyl, hydroxyl, carboxyl, amino, carboxamido, aminoacyl, —COOalkyl, —CHO, heterocyclyl, substituted aryl or substituted heterocyclyl. The compounds are inhibitors of LTA4H (leukotriene A4 hydrolase). They are useful for the treatment and prevention and prophylaxis of inflammatory diseases and disorders.
1. A compound of formula:
wherein
ring (a) is chosen from pyrazole and pyrrole unsubstituted or substituted with from one to three substituents independently selected from the group consisting of halogen, hydroxyl, loweralkyl, loweracyl, loweralkoxy, fluoroloweralkyl, fluoroloweralkoxy, formyl, cyano, and nitro;
Q is selected from the group consisting of a direct bond, O, S, SO, SO 2 , NR 1 , CH 2 , CF 2 , and C(O);
n is 1 or 2;
taken together ZW is H or
Z is (CH 2 ) 1-10 in which one or two (CH 2 ) may optionally be replaced by —O—, —NR 1 —, —SO—, —S(O) 2 —, —C(═O)— or —C═O(NH)—;
R 1 is chosen from H and lower alkyl; and
W is selected from the group consisting of hydrogen, acyl, hydroxyl, carboxyl, amino, carboxamido, aminoacyl, —COOalkyl, —CHO, substituted aryl, sulfonamide, —C(O)fluoroalkyl, —C(O)CH 2 C(O)Oalkyl, C(O)CH 2 C(O)Ofluoroalkyl, —SH, —C(O)NH(OH), —C(O)N(OH)R 4 , —N(OH)C(O)OH, and —N(OH)C(O)R 4 ; and
R 4 is selected from the group consisting of H and lower alkyl.
2. A compound according to claim 1 , wherein Q is —O—.
3. A compound according to claim 2 , wherein ring (a) is a pyrazole.
4. A compound according to claim 3 of formula:
wherein
R 2 is selected from the group consisting of H, halogen, hydroxyl, loweralkyl, loweracyl, loweralkoxy, fluoroloweralkyl, fluoroloweralkoxy, formyl, cyano, and nitro.
5. A compound according to claim 4 , wherein
ZW is hydrogen, or
Z is (CH 2 ) 1-10 ; in which one or two (CH 2 ) may optionally be replaced by —O—, —NR 1 —, —SO—, —S(O) 2 —, —C(═O)— or —C═O(NH), and
W is selected from the group consisting of acyl, hydroxy, carboxy, amino, carboxamido and aminoacyl.
6. A compound according to claim 5 of formula
wherein
R 2 is chosen from H, loweralkyl, trifluoromethyl and halogen; and
ZW is hydrogen or
Z is chosen from (CH 2 ) 1-3 and —C(O)—, and
W is selected from the group consisting of hydrogen, acyl, hydroxyl, carboxyl, amino, carboxamido, aminoacyl, COOloweralkyl and COOH.
7. A compound according to claim 2 , wherein ring (a) is a pyrrole.
8. A compound according to claim 7 of formula:
wherein
R 3 is selected from the group consisting of H, halogen, loweralkyl, loweracyl, loweralkoxy, fluoroloweralkyl, fluoroloweralkoxy, formyl, cyano, and nitro.
9. A compound according to claim 8 , wherein
ZW is hydrogen, or
Z is (CH 2 ) 1-10 ; in which one or two (CH 2 ) may optionally be replaced by —O—, —NR 1 —, —SO—, —S(O) 2 —, —C(═O)— or —C═O(NH), and
W is selected from the group consisting of acyl, hydroxyl, carboxyl, amino, carboxamido and aminoacyl.
10. A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of at least one compound according to claim 1 .