Design and synthesis of novel spin-labeled camptothecin derivatives as potent cytotoxic agents
作者:Xiao-Bo Zhao、Dan Wu、Mei-Juan Wang、Masuo Goto、Susan L. Morris-Natschke、Ying-Qian Liu、Xiao-Bing Wu、Zi-Long Song、Gao-Xiang Zhu、Kuo-Hsiung Lee
DOI:10.1016/j.bmc.2014.09.035
日期:2014.11
search for natural product-based spin-labeled antitumor drugs, 20 novel spin-labeled camptothecin derivatives were synthesized via a Cu-catalyzed one pot reaction and evaluated for cytotoxicity against four human tumor cell lines (A-549, MDA-MB-231, KB, and KBvin). Eighteen of the target compounds (9a, 9b, 9d–9k, 9m–9t) exhibited significant in vitro antiproliferative activity against these four tested tumor
在我们继续寻找基于天然产物的自旋标记抗肿瘤药物中,通过铜催化的一锅反应合成了20种新的自旋标记喜树碱衍生物,并评估了其对四种人类肿瘤细胞系的细胞毒性(A-549,MDA-MB -231,KB和KBvin)。十八种目标化合物(9a,9b,9d - 9k,9m - 9t)对这四种测试的肿瘤细胞系表现出显着的体外抗增殖活性。化合物9e和9j(IC 50 0.057和0.072μM)分别显示出对多药耐药(MDR)KBvin细胞系的最大细胞毒性,并值得进一步发展为治疗包括MDR表型在内的癌症的临床前和临床候选药物。