作者:Heyong Gao、Xiongwen Zhang、Yi Chen、Hongwu Shen、Jing Sun、Min Huang、Jian Ding、Chuan Li、Wei Lu
DOI:10.1016/j.bmcl.2005.02.072
日期:2005.4
identify potent antitumor agents. The synthesis method was based on the Claisen rearrangement of 10-allyloxy-7-ethylcamptothecin. All of the compounds were assayed for cytotoxicity against two human tumor cell lines, Bel7402, HCT116, and showed good potency in vitro. Compounds 2, 4, 9, were assessed for the stability of lactone in human plasma. And then compound 2 was tested for antitumor activity in vitro
合成了一系列新的喜树碱衍生物,作为拓扑异构酶I抑制剂,以鉴定有效的抗肿瘤药。合成方法基于10-烯丙氧基-7-乙基喜树碱的Claisen重排。测定所有化合物对两种人类肿瘤细胞系Bel7402,HCT116的细胞毒性,并在体外显示出良好的效价。评估化合物2、4、9在人血浆中内酯的稳定性。然后测试化合物2在体外对小鼠肿瘤肉瘤180的抗肿瘤活性。结果表明,喜树碱的7位和9位上的小烷基基团在体内和体外均可促进脂溶性和抗肿瘤活性,尽管并没有增加内酯的稳定性。