有机化学 ›› 2001, Vol. 21 ›› Issue (4): 278-284. 上一篇    下一篇

研究论文

鬼臼毒素衍生物的量子化学研究

何峰;刘宗潮;郑康成;云逢存   

  1. 中山医科大学化学教研室;中山医科大学肿瘤研究所.广州(510000);中山大学 化学学院
  • 发布日期:2001-04-25

A quantum chemistry study of podophyllotoxin derivatives

He Feng;Liu Zongchao;Zheng Kangcheng;Yun Fengcun   

  1. Sun Yat-sen Univ Med Sci., Cancer Res Inst.Guangzhou(510000)
  • Published:2001-04-25

对若干个鬼臼毒素衍生物进行了量子化学计算,根据其电子结构及有关分析结果,结合它们对体外L1210白血病细胞生长的抑制活性(IC50),讨论了它们的活性部位及构效关系,发现具有较高活性的化合物分子中有三个重要部位:C4位为有效的修饰位点;B环及E环是重要的活性部位,其中B环是接受电子的主要活性部位,其正电性越高,活性越强;E环及其4'位酚羟基氧的负电性越高,活性越强。

关键词: 鬼臼毒素, 抗癌活性, 定量构效关系, 抑制(生物科学), 量子化学

A number of podophyllotoxin derivatives were analyzed by AM1 method. Some information from the calculation results and the inhibition of L1210 indicate that there are three structurally distince domains: The C4 position is an effective modified point. The B ring and E ring are important active centers. The results also show that the hole of positive charge in B ring easily combines with an acceptor within the molecule. The E ring along with its C4'xyl group is an important center of negative electricity.

Key words: ANTINEOPLASTIC ACTIVITY, QUANTITATIVE STRUCTURE ACTIVITY RELATIONSHIP, INHIBITION (BIOLOGICAL SCIENCE), QUANTUM CHEMISTRY

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