作者:Kendra R. Vann、Yavuz Ergün、Sevil Zencir、Serkan Oncuoglu、Neil Osheroff、Zeki Topcu
DOI:10.1016/j.bmcl.2016.02.034
日期:2016.4
Ellipticine (5,11-dimethyl-6H-pyrido[4,3-b]carbazole) is an antineoplastic agent that intercalates into DNA and alters topoisomerase II activity. Unfortunately, this compound displays a number of adverse properties. Therefore, to investigate new ellipticine-based compounds for their potential as topoisomerase II-targeted drugs, we synthesized two novel derivatives, N-methyl-5-demethyl ellipticine (ET-1)
玫瑰树碱(5,11-二甲基-6 H-吡啶并[4,3- b ]咔唑)是一种抗肿瘤药,可插入DNA中并改变拓扑异构酶II的活性。不幸的是,这种化合物表现出许多不利的性质。因此,为了研究基于玫瑰树碱的新型化合物作为拓扑异构酶II靶向药物的潜力,我们合成了两种新型衍生物:N-甲基-5-脱甲基玫瑰树碱(ET-1)和2-甲基-N-甲基-5-脱甲基碘碘(ET-2)。如通过DNA脱级和裂解测定所确定的,ET-1和ET-2充当人类拓扑异构酶IIα的催化抑制剂,并且都比母体化合物更有效。两种化合物均不损害II型酶与其DNA底物结合的能力。最后,ET-1和ET-2作为拓扑异构酶IIα的催化抑制剂的功效似乎与它们插入双螺旋结构的能力有关。