Quinolone are a class of potent broad-spectrum antibacterial drugs that target the bacterial type II DNA topoisomerases (DNA gyrase) and topoisomerase IV. In the present study, the synthesis and evaluation of cytotoxicity activity of a new series ofN-pipearzinyl quinolones containingN-2-(furyl-2-yl)-2-(chlorobenzyloxyimino) ethyl moiety(6a-c)have been studied. Preliminary screening showed that one of the new compounds, namely 7-(4-(2-(3-chlorobenzyloxyimino)-2-(furan-2-yl) ethyl) piperazin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1, 4-dihydroquinoline-3-carboxylic acid(6b)showed significant cytotoxic activity against human breast tumor cell lines.
喹诺酮是一类强效广谱抗菌药物,靶向细菌II型DNA拓扑异构酶(DNA旋转酶)和拓扑异构酶IV。在本研究中,合成和评估了一系列新的含N-哌嗪基喹诺酮,其中包含N-2-(呋喃-2-基)-2-(氯苄氧基亚胺)乙基基团(6a-c)的细胞毒活性。初步筛选显示,其中一种新化合物,即7-(4-(2-(3-氯苄氧基亚胺)-2-(呋喃-2-基)乙基)哌嗪-1-基)-1-环丙基-6-氟-4-氧-1,4-二氢喹啉-3-羧酸(6b),对人类乳腺肿瘤细胞系显示出显著的细胞毒活性。