Design, synthesis and biological evaluation of novel 4-phenoxy-6,7-disubstituted quinolines possessing (thio)semicarbazones as c-Met kinase inhibitors
作者:Xin Zhai、Guanglong Bao、Limei Wang、Mingke Cheng、Meng Zhao、Sijia Zhao、Hongyang Zhou、Ping Gong
DOI:10.1016/j.bmc.2016.02.003
日期:2016.3
In continuing our efforts to identify small molecules able to inhibit c-Met kinase, three series of novel 6,7-disubstituted-4-phenoxyquinoline derivatives (23a–w, 26a–d and 30a–d) bearing (thio)semicarbazone scaffold were designed, synthesized and evaluated for their cytotoxicity. The biological data revealed that most compounds exhibited moderate-to-excellent activity against HT-29, MKN-45, A549 cancer
在继续努力确定能够抑制c-Met激酶的小分子的过程中,研究了三个系列的带有(硫)半卡巴zone骨架的新型6,7-二取代-4-苯氧基喹啉衍生物(23a – w,26a – d和30a – d)。设计,合成并评估其细胞毒性。生物学数据表明,大多数化合物对HT-29,MKN-45,A549癌细胞系表现出中等至优异的活性,对MDA-MB-231细胞的效力相对较差,并且在正常PBL细胞中几乎没有任何细胞毒性。进一步检查了11种化合物对c-Met激酶的抑制活性和3种化合物(23h,23n和26a)显示出良好的抑制活性。这项工作导致发现了一种有效的c-Met抑制剂23n,它在R 2部分带有2-羟基-3-烯丙基苯基,它是有价值的先导分子,对A549和HT-29细胞系具有显着的细胞毒性和高选择性。 IC 50值为11 nM和27 nM。此外,它在单数字纳摩尔水平(IC 50 = 1.54 nM)上表现出出