申请人:Pfizer Limited
公开号:EP0226357A1
公开(公告)日:1987-06-24
Quinolone cardiac stimulants of the formula:-
or a pharmaceutically acceptable salt thereof, wherein "Het" is a 5-membered monocyclic aromatic heterocyclic group containing at least one nitrogen atom in the aromatic ring and attached by a nitrogen atom to the 5-, 6-, 7-or 8-position of the quinolone;
"Het" being substituted by a group selected from
wherein R' is a phenyl group optionally substituted by 1 to 3 substituents each independently selected from C,-C4 alkyl, C,-C4 alkoxy, hydroxy, halo, trifluoromethyl, -CONR3R4, -SO2NR3R4, -N(R3)SO2(C1-C4 alkyl) and-S(O) n(C1-C4 alkyl) where R3 and R4 are each H or C1-C4 alkyl and n is 0, 1 or 2, and R2 is a heterocyclic group selected from thienyl, furyl, imidazolyl, triazolyl and tetrazolyl, said heterocyclic group being attached to the adjacent carbonyl group by a ring carbon atom and being optionally substituted by up to two substituents each independently selected from C1-C4 alkyl, C1-C4 alkoxy and halo;
"Het" also being optionally substituted by up to two C,-C4 alkyl groups;
and R, which is attached to the 5-, 6-, 7-or 8-position of the quinolone, is H, C1-C4 alkyl, C1-C4 alkoxy, hydroxy, CF,, halo, cyano or hydroxymethyl.
式中的喹诺酮类强心剂
或其药学上可接受的盐,其中 "Het "是 5 元单环芳香杂环基团,在芳香环中至少含有一个氮原子,并通过一个氮原子连接到喹诺酮的 5-、6-、7-或 8-位;
"Het" 被选自以下的基团取代
其中 R'是苯基,可任选被 1 至 3 个各自独立选自 C,-C4烷基、C,-C4 烷氧基、羟基、卤代、三氟甲基、-CONR3R4、-SO2NR3R4、-N(R3)SO2(C1-C4 烷基)和-S(O) n(C1-C4烷基)的取代基取代,其中 R3 和 R4 各自为 H 或 C1-C4 烷基,n 为 0、1 或 2、和 R2 是选自噻吩基、呋喃基、咪唑基、三唑基和四唑基的杂环基团,所述杂环基团通过一个环碳原子连接到相邻的羰基上,并可选择被最多两个各自独立选自 C1-C4 烷基、C1-C4 烷氧基和卤代的取代基取代;
"Het "也可选择被最多两个 C,-C4烷基取代;
与喹啉酮的 5-、6-、7-或 8-位相连的 R 是 H、C1-C4 烷基、C1-C4 烷氧基、羟基、CF、卤代、氰基或羟甲基。