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,对耐药菌有良好的抗菌效果,对传统抗菌剂不敏感。
解决方法 提供7-(4-取代-3-环丙
氨甲基
吡咯烷基)喹诺酸衍
生物(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),对革兰阳性菌有强效的抗菌活性,如MRSA、PR
SP和VRE,同时具有安全性。这些化合物的一般式如下(I):