申请人:Pfizer Limited
公开号:EP0258033A2
公开(公告)日:1988-03-02
Compounds of the formula:-
wherein R is phenyl or phenyl substituted by one or more substituents selected from nitro, halo, C₁-C₄ alkyl, C₁-C₄ alkoxy, aryl(C₁-C₄ alkoxy), C₁-C₄ alkylthio, C₁-C₄ alkylsulphonyl, hydroxy, trifluoromethyl and cyano; R¹ and R² are each independently H or C₁-C₆ alkyl, or the two groups may be joined together to form with the nitrogen atom to which they are attached a pyrrolidinyl, piperidino, morpholino, piperazinyl or N-(substituted)-piperazinyl group, said substituent being C₁-C₄ alkyl, C₂-C₄ alkanoyl or pyridyl; or R² is H or C₁-C₄ alkyl and R¹ is C₃-C₇ cycloalkyl, aryl, indanyl, or heteroaryl, or a C₁-C₄ alkyl group substituted by one or more substituents selected from C₃-C₇ cycloalkyl, C₁-C₄ alkoxycarbonyl, aryl and heteroaryl; R³ is C₁-C₆ alkyl; Y is an alkylene group of from 2 to 8 carbon atoms which may be straight or branched-chain having at least 2 carbon atoms in the chain linking X to the oxygen atom; X is 1-imidazolyl optionally substituted with from 1 to 3 substituents which may be C₁-C₄ alkyl groups or halo atoms, or wherein the 4 and 5 positions may be linked by -(CH₂)p- where p is 3 or 4, and their pharmaceutically acceptable salts are antagonists of PAF and are useful in the treatment of allergic, inflammatory and hypersecretory conditions.
式中的化合物
其中 R 是苯基或被一个或多个选自硝基、卤代、C₁-C₄ 烷基、C₁-C₄ 烷氧基、芳基(C₁-C₄ 烷氧基)、C₁-C₄ 烷硫基、C₁-C₄ 烷磺酰基、羟基、三氟甲基和氰基的取代基取代的苯基;R¹ 和 R² 各自独立地为 H 或 C₁-C₆烷基,或者这两个基团可以连接在一起,与它们所连接的氮原子形成吡咯烷基、哌啶基、吗啉基、哌嗪基或 N-(取代)-哌嗪基,所述取代基为 C₁-C₄烷基、C₂-C₄烷酰基或吡啶基;或 R² 是 H 或 C₁-C₄ 烷基,R¹ 是 C₃-C₇ 环烷基、芳基、茚基或杂芳基,或被选自 C₃-C₇ 环烷基、C₁-C₄ 烷氧基羰基、芳基和杂芳基的一个或多个取代基取代的 C₁-C₄ 烷基;R³ 是 C₁-C₆ 烷基;Y 是 2 至 8 个碳原子的亚烷基,可以是直链或支链,在连接 X 与氧原子的链中至少有 2 个碳原子;X 是可选被 1 至 3 个取代基取代的 1-咪唑基,这些取代基可以是 C₁-C₄烷基或卤原子,或者其中 4 和 5 位可通过-(CH₂)p-连接,其中 p 是 3 或 4,它们的药学上可接受的盐类是 PAF 拮抗剂,可用于治疗过敏、炎症和分泌过多的病症。