申请人:MEIJI SEIKA KABUSHIKI KAISHA
公开号:EP0452076A1
公开(公告)日:1991-10-16
A thiazole or imidazole derivative having the general formula (I):
wherein:
R¹ and R², which may be the same or different, each independently represent a hydrogen atom, or a phenyl or heteroaryl group, or R¹ and R² may together form a benzene ring which may be optionally substituted by a halogen atom or a lower alkyl optionally substituted by a halogen atom, lower alkoxy or nitro group;
A represents a sulfur atom or -NH-;
B represents a lower alkoxy group optionally substituted by a halogen atom; a five- or six-membered saturated heterocyclic ring containing one nitrogen or oxygen atom which ring may be optionally substituted; a six-membered saturated heterocyclic ring containing one oxygen atom plus one nitrogen atom; a group -XR³ where X represents a group -NR⁴ wherein R³ and R⁴, which may be the same or different, each independently represent a lower alkyl group; or a group -NHC(=Y)R⁵ where Y represents an oxygen or sulfur atom or a group =NCN or =CHNO₂, and R⁵ represents a group -NHR⁶ or -SR⁶ wherein R⁶ represents a lower alkyl group optionally substituted by a halogen atom;
m is an integer from 1 to 4; and
n is an integer from 0 to 2;
and their pharmacologically acceptable salts. The compounds has an antiulcerative activity.
具有通式 (I) 的噻唑或咪唑衍生物:
其中
R¹和 R²(可以相同或不同)各自独立地代表一个氢原子,或一个苯基或杂芳基,或 R¹和 R²可共同形成一个苯环,该苯环可任选被卤素原子或任选被卤素原子、低级烷氧基或硝基取代的低级烷基取代;
A 代表硫原子或-NH-;
B 代表可任选被卤素原子取代的低级烷氧基; 包含一个氮原子或氧原子的五元或六元饱和杂环,该环可任选被取代; 包含一个氧原子加一个氮原子的六元饱和杂环;基团 -XR³ 其中 X 代表基团 -NR⁴ 其中 R³ 和 R⁴ 可以相同或不同,各自独立地代表低级烷基;或基团 -NHC(=Y)R⁵ 其中 Y 代表氧原子或硫原子或基团 =NCN 或 =CHNO₂,且 R⁵ 代表基团 -NHR⁶ 或 -SR⁶,其中 R⁶ 代表任选被卤原子取代的低级烷基;
m 是 1 至 4 的整数;以及
n 是 0 至 2 的整数;
及其药理学上可接受的盐类。这些化合物具有抗溃疡活性。