Synthesis and in vitro antibacterial activity of quinolone/naphthyridone derivatives containing 3-alkoxyimino-4-(methyl)aminopiperidine scaffolds
作者:Kai Lv、Jinwei Wu、Jian Wang、Mingliang Liu、Zengquan Wei、Jue Cao、Yexin Sun、Huiyuan Guo
DOI:10.1016/j.bmcl.2013.01.048
日期:2013.3
We report herein the synthesis of a series of 7-[3-alkoxyimino-4-(methyl)aminopiperidin-1-yl]quinolone/naphthyridone derivatives. In vitro antibacterial activity of these derivatives was evaluated against representative strains, and compared with ciprofloxacin (CPFX), levofloxacin (LVFX) and gemifloxacin (GMFX). The results reveal that all of the target compounds 19a–c and 20 have considerable Gram-positive
我们在此报告了一系列7- [3-烷氧基亚氨基-4-(甲基)氨基哌啶-1-基]喹诺酮/萘啶酮衍生物的合成。评估了这些衍生物对代表性菌株的体外抗菌活性,并与环丙沙星(CPFX),左氧氟沙星(LVFX)和吉非沙星(GMFX)进行了比较。结果表明,所有目标化合物19a – c和20均具有相当的革兰氏阳性活性,尽管除某些例外,它们通常比参考药物对革兰氏阴性菌株的活性低。尤其是,新的化合物19A2,19a4和19a5 被发现对所有测试的15株革兰氏阳性菌株(包括MRSA,LVFX和GMFX耐药的MRSE以及CPFX,LVFX和GMFX耐药的MSSA)显示出强大的抗菌活性(MIC:<0.008–0.5μg/ mL) 。