Norcantharimide analogues possessing terminal phosphate esters and their anti-cancer activity
作者:Mark J. Robertson、Christopher P. Gordon、Jayne Gilbert、Adam McCluskey、Jennette A. Sakoff
DOI:10.1016/j.bmc.2011.01.031
日期:2011.9
A family of norcantharidin analogues possessing a terminal alcohol (ethanol, propanol, butanol, pentanol, hexanol and cyclohexanol) moiety were treated with either chlorodiethyl, chlorodiphenyl or chloro-bis-trichloroethyl-phosphate to afford highly focused libraries of the corresponding phosphate esters. Subsequent biological screening against a panel of nine human cancer cell lines identified a trend
将具有末端醇(乙醇,丙醇,丁醇,戊醇,己醇和环己醇)部分的降冰素烷类似物家族用氯二乙基,氯二苯基或氯双-三-三氯乙基磷酸处理,以提供高度集中的相应磷酸酯的文库。随后针对九种人类癌细胞系进行的生物学筛选确定了磷酸酯掩盖的难易程度(磷酸酯水解)和细胞死亡之间的趋势。最有效的类似物具有联苯或双三氯乙基部分。还用通常更有效的己基类似物检查了烷基间隔基的作用。4-氮杂-4-(3- 双(2,2,2-三氯乙基)磷酸盐}丙基)-10-氧三环[5.2.1.0]癸烷-3,5-二酮(10b)是最有效的类似物,在一组9种人类癌细胞系中合成的平均GI 50为11μM:结肠癌(HT29和SW480); 乳腺癌(MCF-7);卵巢癌(A2780);肺癌(H460); 皮肤癌(A431); 前列腺癌(DU145); 神经元癌(BE2-C)和脑癌(SJ-G2)。相对于铅,降冰片素,抗增殖活性提高了五倍。