Total synthesis of novel D-ring-modified triptolide analogues: structure–cytotoxic activity relationship studies on the D-ring of triptolide
作者:Bing Zhou、Xiaomei Li、Huanyu Tang、Zehong Miao、Huijin Feng、Yuanchao Li
DOI:10.1039/c0ob01239d
日期:——
and the semi-synthesis of analogue 4, with a furan ring, and compound 5, without a planar D-ring, are described. Studies into the antitumor activity of these compounds suggest that the five-membered unsaturated lactone ring (D-ring) of triptolide is essential to its potent anticancer activity and the C18 carbonyl group may exert an important influence on the interaction between triptolide and the target