7- (4-substituted-3-cyclopropylaminomethyl-1-pyrrolidinyl) quinolonecarboxylic acid derivative
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US08106072B2
公开(公告)日:2012-01-31
Object
To provide novel quinolinecarboxylic 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):
目标:提供新型喹诺酸类化合物,作为安全、强效的抗菌剂,对耐药细菌具有有效作用,且对常规抗菌剂的敏感性较低。
解决方法:提供7-(4-取代的3-环丙氨甲基吡咯啉基)喹诺酸衍生物(例如1-环丙基-7-[(3S,4S)-3-环丙氨甲基-4-氟-1-吡咯啉基]-6-氟-1,4-二氢-8-甲氧基-4-氧代-3-喹诺酸),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。这些化合物由以下通式(I)表示: