Thiazole derivatives, processes for the preparation thereof and pharmaceutical composition comprising the same
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0117082A2
公开(公告)日:1984-08-29
New thiazole derivatives for the formula:
wherein
R' is lower alkyl, carboxy, a derivative of carboxy, hydroxymethyl, halomethyl, lower alkylthiomethyl, hydroxyiminomethyl or alkenyl which may be substituted with lower alkoxycarbonyl, pyridyl or cyano.
R2 is hydrogen, hydroxy, lower alkyl, pyridyl, amino, lower alkylamino, pyridylamino, arylamino, acylamino, N-(lower)alkylN-acylamino, guanidino optionally substituted with dimethylaminomethylene, or ar(lower) alkylamino optionally substituted with lower alkoxy,
R3 is lower alkyl, halo(lower)alkyl or N-containing unsaturated heterocyclic group which may be substi- tued with halogen, lower alkyl, lower alkoxy, carboxy, a derivative of carboxy, hydroxy, pyridyl, amino, lower alkylamino, pyridylamino, arylamino, acylamino, N-(lower)alkyl-N-acylamino, guanidino, N-oxide or ar(lower)alkylamino optionally substituted with lower alkoxy,
0 is -CO-, and
n is an integer of 0 or 1, provided that when both of R' and R3 are lower alkyl then n is an integer of 1 and R2 is lower alkyl, pyridyl, amino lower alkylamino, pyridylamino, arylamino, acylamino, N-(lower)alkyl-N-acylamino, guanidino optionally substituted with dimethylaminomethylene, or ar(lower) alkylamino optionally substituted with lower atkoxy, and when R1 is lower alkyl and R3 is halo(lower)alkyl then n is an integer of 1, and pharmaceutically acceptable salts thereof, and processes for preparation thereof and pharmaceutical composition comprising the same.
These derivatives and pharmaceutically acceptable salts thereof are useful as cardiotonic agents and anti-ulcer agents.
式中的新噻唑衍生物:
式中
R'是低级烷基、羧基、羧基的衍生物、羟甲基、卤甲基、低级烷硫基甲基、羟基亚氨基甲基或烯基,可被低级烷氧羰基、吡啶基或氰基取代。
R2 是氢、羟基、低级烷基、吡啶基、氨基、低级烷基氨基、吡啶基氨基、芳基氨基、酰基氨基、N-(低级)烷基-N-酰基氨基、任选被二甲氨基亚甲基取代的胍基,或任选被低级烷氧基取代的 ar(低级)烷基氨基、
R3 是低级烷基、卤代(低级)烷基或含 N 的不饱和杂环基团,可被卤素、低级烷基、低级烷氧基、羧基、羧基的衍生物、羟基、吡啶基、氨基、低级烷基氨基、吡啶氨基、芳基氨基、酰基氨基、N-(低级)烷基-N-酰基氨基、胍基、N-氧化物或可选择被低级烷氧基取代的 ar(低级)烷基氨基取代、
0 是-CO-,以及
n 是 0 或 1 的整数,条件是当 R' 和 R3 都是低级烷基时,n 是 1 的整数,且 R2 是低级烷基、吡啶基、氨基低级烷基氨基、吡啶基氨基、芳基氨基、酰基氨基、N-(低级)烷基-N-酰基氨基、任选被二甲氨基亚甲基取代的胍基、当 R1 为低级烷基,R3 为卤代(低级)烷基时,n 为 1 的整数。
这些衍生物及其药学上可接受的盐可用作强心剂和抗溃疡剂。