申请人:BRITISH BIO-TECHNOLOGY LIMITED
公开号:EP0502706A1
公开(公告)日:1992-09-09
Compounds of general formula I;
wherein:
each of R¹, R², and R³ independently represents hydrogen, -C₁-C₆ alkyl, -C₂-C₆ alkenyl, -C₁-C₆ alkyl, -SC₁-C₆ alkyl, halo, -CN, -NO₂, -SOC₁-C₆ alkyl, -SO₂C₁-C₆ alkyl, -SO₂NH₂, -COC₁-C₆ alkyl, -CHO, -COOC₁-C₆ alkyl, -CH₂OH, benzyl, benzoyl, -CF₃, -CONH₂, -NHCOC₁-C₆ alkyl;
each of R⁴ and R⁵ independently represents hydrogen, -C₁-C₆ alkyl, -C₂-C₆ alkenyl, -OC₁-C₆ alkyl, -SC₁-C₆ alkyl, halo, -CN, -NO₂, -SOC₁-C₆ alkyl, -SO₂C₁-C₆ alkyl, -SO₂NH₂, -COOH, -COC₁-C₆ alkyl, -CHO, -COOC₁-C₆ alkyl, -CH₂OH, -OH, benzyl, benzoyl, -CF₃, -CONH₂, -NHCOC₁-C₆ alkyl or a -OC(=O)R⁸ group wherein R⁸ represents -C₁-C₆ alkyl, -C₂-C₆ alkenyl, -OC₁-C₆ alkyl, -SC₁-C₆ alkyl, -COC₁-C₆ alkyl, -COOC₁-C₆ alkyl, benzyl, benzoyl, -CF₃, -CN or a V group wherein V represents a) a group
wherein t is an integer from 0 to 3 and each of R⁹, R¹⁰ and R¹¹ is independently hydrogen, -C₁-C₆ alkyl, -C₂-C₆ alkenyl, -OC₁-C₆ alkyl, -SC₁-C₆ alkyl, halo, -CN, -NO₂, -SOC₁-C₆ alkyl, -SO₂C₁-C₆ alkyl, -SO₂NH₂, -COOH, -COC₁-C₆ alkyl, -CHO, -COOC₁-C₆ alkyl, -CH₂OH, -OH, benzyl, benzoyl, -CF₃, -CONH₂, -NHCOC₁-C₆ alkyl;
b) a group -(CH₂)s-Y wherein s is an integer from 0 to 5 and Y represents a 5- or 6-membered aromatic heterocyclic ring containing one or more sp2 nitrogen atoms in its ring, which heterocyclic ring may be optionally fused to a benzene ring or to a further 5- or 6-membered aromatic heterocyclic ring containing one or more nitrogen atoms, wherein at least one of the said heterocyclic rings may also contain an oxygen or sulphur atom, and wherein any of the rings may be optionally substituted with one or more substituents selected from -C₁-C₆ alkyl, -OC₁-C₆ alkyl, halo, -CF₃ and -CN;
or R⁴ together with R⁵ forms a =O, =N-OH, =NHR⁸ or =CHR⁸ group, wherein R⁸ is as defined above;
each of R⁶ and R⁷ independently represents hydrogen, -C₁-C₆ alkyl, -COC₁-C₆ alkyl, benzyl, a group V as defined above or a -COV group wherein V is as defined above;
or R⁶ together with R⁷ form a =CR¹²R¹³ group wherein each of R¹² and R¹³ independently represent a hydrogen atom, a C₁-C₁₈ alkyl, a -C₂-C₆ alkenyl, pyrrole or a group V as defined above;
and their pharmaceutically and veterinarily acceptable acid addition salts and hydrates are antagonists of platelet activating factor (PAF) and as such are useful in the treatment or amelioration of various diseases or conditions mediated by PAF.
通式 I 的化合物;
其中
R¹、R² 和 R³ 各自独立地代表氢、-C₁-C₆ 烷基、-C₂-C₆ 烯基、-C₁-C₆ 烷基、-SC₁-C₆ 烷基、卤素、-CN、-NO₂、-SOC₁-C₆烷基、-SO₂C₁-C₆烷基、-SO₂NH₂、-COC₁-C₆烷基、-CHO、-COOC₁-C₆烷基、-CH₂OH、苄基、苯甲酰基、-CF₃、-CONH₂、-NHCOC₁-C₆烷基;
R⁴ 和 R⁵ 中各自独立地代表氢、-C₁-C₆ 烷基、-C₂-C₆ 烯基、-OC₁-C₆ 烷基、-SC₁-C₆ 烷基、卤代、-CN、-NO₂,-SOC₁-C₆烷基,-SO₂C₁-C₆烷基,-SO₂NH₂,-COOH,-COC₁-C₆烷基,-CHO,-COOC₁-C₆烷基,-CH₂OH,-OH,苄基、苯甲酰基、-CF₃、-CONH₂、-NHCOC₁-C₆ 烷基或 -OC(=O)R⁸ 基团,其中 R⁸ 代表 -C₁-C₆ 烷基、-C₂-C₆ 烯基、-OC₁-C₆ 烷基、-SC₁-C₆烷基、-COC₁-C₆烷基、-COC₁-C₆烷基、苄基、苯甲酰基、-CF₃、-CN 或一个 V 基团,其中 V 代表 a) 一个基团
其中 t 是 0 至 3 的整数,且 R⁹、R¹⁰ 和 R¹¹ 中各自独立地是氢、-C₁-C₆ 烷基、-C₂-C₆ 烯基、-OC₁-C₆ 烷基、-SC₁-C₆ 烷基、卤代、-CN、-NO₂、-SOC₁-C₆ 烷基、-SO₂C₁-C₆ 烷基、-SO₂NH₂、-COOH、-COC₁-C₆ 烷基、-CHO、-COOC₁-C₆ 烷基、-CH₂OH、-OH、苄基、苯甲酰基、-CF₃、-CONH₂、-NHCOC₁-C₆ 烷基;
b) 基团-(CH₂)s-Y,其中 s 为 0 至 5 的整数,Y 代表在其环中含有一个或多个 sp2 氮原子的 5 或 6 元芳香杂环,该杂环可选择与苯环或含有一个或多个氮原子的另一个 5 或 6 元芳香杂环融合、其中至少一个所述杂环还可包含一个氧原子或硫原子,并且其中任何一个环都可任选被一个或多个取代基取代,这些取代基可选自-C₁-C₆烷基、-OC₁-C₆烷基、卤素、-CF₃和-CN;
或 R⁴ 与 R⁵ 一起形成 =O、=N-OH、=NHR⁸ 或 =CHR⁸ 基团,其中 R⁸ 如上定义;
R⁶ 和 R⁷ 各自独立地代表氢、-C₁-C₆ 烷基、-COC₁-C₆ 烷基、苄基、如上定义的基团 V 或其中 V 如上定义的-COV 基团;
或 R⁶ 与 R⁷ 共同形成一个 =CR¹²R¹³ 基团,其中 R¹² 和 R¹³ 各自独立地代表氢原子、C₁-C₁₈ 烷基、-C₂-C₆ 烯基、吡咯或如上定义的基团 V;
及其药学上和兽医学上可接受的酸加成盐和水合物是血小板活化因子(PAF)的拮抗剂,因此可用于治疗或改善由 PAF 介导的各种疾病或病症。