7-(4-Substituted-3-cyclopropylaminomethyl-1 pyrrolidinyl) quinolonecarboxylic acid derivative
申请人:Asahina Yoshikazu
公开号:US20060281779A1
公开(公告)日:2006-12-14
OBJECT To provide novel quinolonecarboxylic acid compounds serving as safe, strong antibacterial agents that are effective against drug-resistant bacteria that are less susceptible to conventional antibacterial agents. SOLVING MEANS
There are provided 7-(4-substituted-3-cyclopropylaminomethylpyrrolidinyl)quinolonecarboxylic acid derivatives (such as 1-cyclopropyl-7-[(3S,4S)-3-cyclopropylaminomethyl-4-fluoro-1-pyrrolidinyl]-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid) that exhibit strong antibacterial activity against gram-positive bacteria, such as MRSA, PRSP and VRE, while being safe. The compounds are shown by the following general formula (I):
目的:提供新型喹诺酮羧酸化合物,作为安全、强效的抗菌剂,对耐药菌有良好的抗菌效果,而且对传统抗菌剂的抗性较低。
解决方法:提供7-(4-取代的3-环丙氨甲基吡咯烷基)喹诺酮羧酸衍生物(例如1-环丙基-7-[(3S,4S)-3-环丙氨甲基-4-氟-1-吡咯烷基]-6-氟-1,4-二氢-8-甲氧基-4-氧代-3-喹啉羧酸),对革兰氏阳性菌(如MRSA、PRSP和VRE)表现出强效的抗菌活性,同时具有安全性。这些化合物的通用式如下(I):