6-Benzyl-2H-pyridazin-3-one derivatives,their preparation and their use as inhibitors of prostaglandin G/H synthase I and II (COX I and COX II)
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0810218A1
公开(公告)日:1997-12-03
Compounds of formula I:
where:
the dashed line denotes an optional bond;
R1 is H, halo, alkyl, alkyloxy, amino, alkylamino, dialkylamino, or acylamino;
R3 and R4 are independently H, halo, alkyl, alkyloxy, or hydroxy;
R5 is H, halo, alkyl, alkylthio, alkyloxy, alkenyloxy, alkynyl, or alkenyl;
provided that at least one of R1, R3, R4, and R5 is H;
R7 is H, alkyl, cyano, or amido;
R10 is a group represented by formula (A), (B), or (C);
where:
X is O or S;
R12, R13, R15, and R16 are independently H, halo, alkyl, alkyloxy, or alkylthio; and
R14 is H, halo, alkyl, alkylthio, alkyloxy, alkenyloxy, alkynyl, alkenyl, or -SO2R17
where R17 is alkyl, or -SO2NR18R19 where R18 and R19 are independently H or alkyl; provided that at least two of R12, R13, R14, R15, and R16 are H, and that if only two of R12, R13, R15, and R16 are H, the non-hydrogen substituents are not all adjacent; and at least one of R12 and R16 is H when neither R1 nor R3 are H; and
R20 is H, alkyl, haloalkyl, hydroxyalkyl, or alkenyl;
and their pharmaceutically acceptable salts
are inhibitors of prostaglandin G/H synthase and are anti-inflammatory and analgesic agents.
式 I 的化合物:
其中
虚线表示任选键;
R1 是 H、卤代、烷基、烷氧基、
氨基、烷基
氨基、二烷基
氨基或酰
氨基;
R3 和 R4 独立地为 H、卤代、烷基、烷氧基或羟基;
R5 是 H、卤代、烷基、烷
硫基、烷氧基、烯氧基、炔基或烯基;
条件是 R1、R3、R4 和 R5 中至少有一个是 H;
R7 是 H、烷基、
氰基或
氨基;
R10 是式 (A)、(B) 或 (C) 所代表的基团;
其中
X 是 O 或 S;
R12、R13、R15 和 R16 独立地为 H、卤代、烷基、烷氧基或烷
硫基;以及
R14 是 H、卤素、烷基、烷
硫基、烷氧基、烯氧基、炔基、烯基或 -SO2R17
其中 R17 是烷基,或-SO2NR18R19,其中 R18 和 R19 独立地是 H 或烷基;条件是 R12、R13、R14、R15 和 R16 中至少有两个是 H,如果 R12、R13、R15 和 R16 中只有两个是 H,则非氢取代基并不都是相邻的;当 R1 和 R3 都不是 H 时,R12 和 R16 中至少有一个是 H;以及
R20 是 H、烷基、卤代烷基、羟基烷基或烯基;
及其药学上可接受的盐类
是
前列腺素 G/H 合成酶的
抑制剂,是抗炎和镇痛剂。