Synthesis, antiproliferative, and vasorelaxing evaluations of coumarin α-methylene-γ-butyrolactones
作者:Yeh-Long Chen、Chih-Ming Lu、Shoiw-Ju Lee、Daih-Huang Kuo、I-Li Chen、Tai-Chi Wang、Cherng-Chyi Tzeng
DOI:10.1016/j.bmc.2005.06.013
日期:2005.10
microM against pig coronary arterial contraction induced by KCl, is a more active vasorelaxant than its coumarin-4-yl counterpart 6a and its gamma-methyl congener 1. A methyl group substituted at C-4 of the coumarin-7-yl moiety reduced the vasorelaxing effect (6d vs 6e) while the 3,4,8-trimethyl derivative 6f was inactive. (2) For the antiproliferative activity, coumarin-4-yl alpha-methylene-gamma-butyrolactone
合成了某些香豆素α-亚甲基-γ-丁内酯,并评估了其抗增殖和血管舒张活性。这些化合物是通过羟基香豆素2a-f的烷基化,氧化和Reformatsky型缩合反应合成的。这项研究的结果如下:(1)对于血管松弛活性,香豆素-7-基α-亚甲基-γ-丁内酯6d对氯化钾引起的猪冠状动脉收缩的IC50值为9.4 microM,活性更高。血管舒张剂比其香豆素-4-基对应物6a和它的γ-甲基同源物1。在香豆素-7-基部分的C-4处取代的甲基降低了血管舒张作用(6d vs 6e),而3,4,8 -三甲基衍生物6f是无活性的。(2)香豆素-4-基α-亚甲基-γ-丁内酯6a具有抗增殖活性,它们对MCF7,NCI-H460和SF-268的生长表现出最强的抗增殖活性,IC50值分别为6.97、14.68和8.36 microM,比其香豆素7-基对应物6d和6具有更强的细胞毒性。 ,7-二甲基衍生物6b。对于香豆素-7-基