申请人:Pfizer Limited
公开号:EP0365140A1
公开(公告)日:1990-04-25
The invention provides compounds of the formula:-
and pharmaceutically acceptable salts thereof,
wherein R is phenyl optionally substituted by either methylenedioxy on two adjacent ring carbon atoms, or by 1 to 3 substituents each independently selected from nitro, halo, C₁-C₄ alkyl, C₁-C₄ alkoxy, aryl(C₁-C₄)alkoxy, fluoro(C₁-C₄)alkoxy, C₁-C₄ alkylthio, C₁-C₄ alkanesulphonyl, hydroxy, trifluoromethyl and cyano;
R¹ is C₁-C₆ alkyl or aryl(C₁-C₄)alkyl;
R² is hydrogen, C₅-C₇ cycloalkyl, aryl(C₁-C₄)alkyl or C₁-C₆ alkyl, said C₁-C₆ alkyl group being optionally substituted by cyano, trimethylsilyl, halo or C₁-C₄ alkoxy; and
"Het" is either (a) an imidazolyl, triazolyl, pyridinyl, pyridazinyl, pyrimidinyl, pyrazinyl, oxazolyl or thiazolyl group, said group being optionally benzo-, pyrido-, pyridazino-, pyrimido- or pyrazino-fused, or (b) an oxazolo- or thiazolo-fused imidazolyl group, "Het" being optionally substituted by up to 3 substituents each independently selected from C₁-C₄ alkyl, C₁-C₄ alkoxy, trifluoromethyl and halo;
where "aryl", used in the definitions of R, R¹ and R², is phenyl optionally substituted by 1 or 2 substituents each independently selected from halo, trifluoromethyl, C₁-C₄ alkyl, hydroxy, C₁-C₄ alkoxy, (C₁-C₄ alkoxy)carbonyl, sulphamoyl and cyano.
The compounds are useful in the treatment of allergic, inflammatory and hypersecretory conditions, and circulatory shock, stroke and thrombosis.
本发明提供了式如下的化合物
及其药学上可接受的盐类、
其中,R 是苯基,可任选被两个相邻环碳原子上的亚甲基二氧基取代,或被 1 至 3 个各自独立选自硝基、卤代卤素、C₁-C₄ 烷基、C₁-C₄ 烷氧基、芳基(C₁-C₄)烷氧基、
氟(C₁-C₄)烷氧基、C₁-C₄ 烷
硫基、C₁-C₄ 烷磺酰基、羟基、三
氟甲基和
氰基;
R¹ 是 C₁-C₆ 烷基或芳基(C₁-C₄)烷基;
R² 是氢、C₅-C₇ 环烷基、芳基(C₁-C₄)烷基或 C₁-C₆ 烷基,所述 C₁-C₆ 烷基可任选被
氰基、三甲基
硅基、卤代或 C₁-C₄ 烷氧基取代;和
"(a)
咪唑基、三唑基、
吡啶基、
哒嗪基、
嘧啶基、
吡嗪基、
噁唑基或
噻唑基,所述基团可选被苯并 基、
吡啶并基、
哒嗪并基、
嘧啶并基或
吡嗪并基、或 (b) 草唑基或
噻唑基融合的
咪唑基,"Het "可任选被最多 3 个各自独立选自 C₁-C₄烷基、C₁-C₄烷氧基、三
氟甲基和卤素的取代基取代;
其中,在 R、R¹ 和 R² 的定义中使用的 "芳基 "是任选被 1 或 2 个取代基取代的苯基, 这些取代基各自独立地选自卤、三
氟甲基、C₁-C₄ 烷基、羟基、C₁-C₄ 烷氧基、(C₁-C₄ 烷氧基)羰基、
氨基磺酰基和
氰基。
这些化合物可用于治疗过敏性、炎症性和高分泌性疾病,以及循环休克、中风和血栓形成。