Design, synthesis and antimicrobial evaluation of propylene-tethered ciprofloxacin-isatin hybrids
作者:Ruo Wang、Xueyang Yin、Yaohuan Zhang、Weitao Yan
DOI:10.1016/j.ejmech.2018.07.025
日期:2018.8
Twelve novel propylene-tethered ciprofloxacin-isatin hybrids 3a-f and 4a-f were designed, synthesized and characterized by MS, HRMS, 1H NMR and 13C NMR. All hybrids were evaluated for their in vitro antimicrobial activities against representative Gram-positive, Gram-negative and mycobacterial pathogens, cytotoxicity in VERO cell line as well as metabolic stability and in vivo pharmacokinetic (PK) properties
设计,合成,表征了十二个新型的丙烯束缚环丙沙星-靛红杂化物3a-f和4a-f,并通过MS,HRMS,1H NMR和13C NMR表征。评估所有杂种对代表性革兰氏阳性,革兰氏阴性和分枝杆菌病原体的体外抗菌活性,VERO细胞系的细胞毒性以及代谢稳定性和体内药代动力学(PK)特性。初步结果表明,所有单-isatin-ciprofloxacin杂种均表现出优异的抗菌活性,MIC对大多数测试菌株的抑菌作用范围为≤0.03至0.5μg/ mL。尤其是环丙沙星-依沙丁胺杂合3d对所有测试的革兰氏阳性和革兰氏阴性菌株(包括临床上重要的耐药病原体)均具有很高的效力,与母体环丙沙星和参比左氧氟沙星相当或比其更有效。而缀合物3b(MIC:0.10和0.5μg/ mL)的抗MTB H37Rv活性比环丙沙星(MIC:0.78μg/ mL)和利福平(MIC:0.39μg/ mL)高4到8倍,而4-相对于MDR-TB的三种参考环丙沙星(MIC:2