申请人:DAIICHI PHARMACEUTICAL CO., LTD.
公开号:EP0807630A1
公开(公告)日:1997-11-19
This invention relates to a N1-(halogenocyclopropyl)-substituted pyridonecarboxylic acid derivative represented by the following formula (I):
wherein X1 is a halogen atom or a hydrogen atom; X2 is a halogen atom; R1 is a hydrogen atom, a hydroxyl group, a thiol group, a halogenomethyl group, an amino group, an alkyl group or an alkoxy group which may have a substituent group; R2 is a group represented by the following formula (II):
wherein R3 and R4 are independently a hydrogen atom or an alkyl group and n is an integer of 1 or 2; A is a nitrogen atom or a partial structure of the following formula (III):
wherein X3 is a hydrogen atom, a halogen atom, a cyano group, an amino group, an alkyl group, a halogenomethyl group, an alkoxyl group or a halogenomethoxyl group which may have a substituent group; and R is a hydrogen atom, a phenyl group, an acetoxymethyl group, a pivaloyloxymethyl group, an ethoxycarbonyl group, a choline group, a dimethylaminoethyl group, a 5-indanyl group, a phthalidynyl group, a 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl group, a 3-acetoxy-2-oxobutyl group, an alkyl group, an alkoxymethyl group or a phenylalkyl group, and provides a heterocyclic compound useful as antibacterial drugs.
本发明涉及由下式(I)代表的N1-(卤代环丙基)-取代的吡啶羧酸衍生物:
其中 X1 是卤素原子或氢原子;X2 是卤素原子;R1 是氢原子、羟基、硫醇基、卤代甲基、氨基、烷基或烷氧基,其中烷基或烷氧基可带有取代基;R2 是由下式(II)代表的基团:
其中 R3 和 R4 独立地为氢原子或烷基,n 为 1 或 2 的整数; A 为氮原子或下式(III)的部分结构:
其中 X3 是氢原子、卤素原子、氰基、氨基、烷基、卤代甲基、烷氧基或可带有取代基的卤代甲氧基;和 R 是氢原子、苯基、乙酰氧甲基、新戊酰氧甲基、乙氧基羰基、胆碱基、二甲基氨基乙基、5-茚基基、酞酰基、5-烷基-2-氧代-1,3-二氧戊环-4-基甲基、3-乙酰氧基-2-氧代丁基、烷基、烷氧基甲基或苯基烷基,并提供一种可用作抗菌药物的杂环化合物。