Stereoselective synthesis of 15- and 16-substituted isosteviol derivatives and their cytotoxic activities
作者:Ya Wu、Gui-Fu Dai、Jing-Hua Yang、Yun-Xiao Zhang、Yu Zhu、Jing-Chao Tao
DOI:10.1016/j.bmcl.2008.12.101
日期:2009.3
By means of functional interconversions in ring D of the tetracyclic diterpene isosteviol (ent-16-ketobeyeran-19-oic acid 1), various 15- and 16-substituted isosteviol derivatives were stereoselectively prepared. The cytotoxic activities in vitro of these new isosteviol derivatives were investigated, and some of them showed noteworthy activities against B16-F10 melanoma cells. (C) 2009 Published by Elsevier Ltd.