Synthesis and preliminary bioevaluation of novel E-ring modified acetal analog of camptothecin as cytotoxic agents
作者:Lingjian Zhu、Chunlin Zhuang、Ning Lei、Zizhao Guo、Chunquan Sheng、Guoqiang Dong、Shengzheng Wang、Yongqiang Zhang、Jianzhong Yao、Zhenyuan Miao、Wannian Zhang
DOI:10.1016/j.ejmech.2012.07.050
日期:2012.10
In an effort to improve the metabolic stability of the E-ring and decrease the toxicity of camptothecin (CPT), a novel cytotoxic acetal analog with 21-alkoxy groups was designed and synthesized. The preliminary results revealed that this class of compounds showed superior antiproliferative activity in vitro and moderate in vivo activity, while their topoisomerase I (Topo I) inhibitory activity was
为了提高E环的代谢稳定性并降低喜树碱(CPT)的毒性,设计并合成了具有21个烷氧基的新型细胞毒性乙缩醛类似物。初步结果表明,这类化合物在体外显示出优异的抗增殖活性,在体内具有中等活性,而它们的拓扑异构酶I(Topo I)抑制活性则明显减弱。在目前对喜树碱的结构-活性关系的了解中,详细分析了这些结果的含义。获得的信息提供了21-羰基在CPT与Topo I-DNA复合体结合中的作用的见解。