Rearranged <scp>Dichapetalin‐Type</scp> Triterpenoids with Cytotoxic Activity from <i>Dichapetalum gelonioides</i>

Abstract

Comprehensive Summary Dichagelinoids A—C (1—3), three unusual dichapetalin‐type triterpenoids, together with two biogenetically related derivatives dichagelinoids D and E (4 and 5) were isolated and characterized by solid data from Dichapetalum gelonioides . Compounds 1—3 possess a common rearranged C ring and different C6—C2 modified motifs at the A rings. Biological evaluation revealed that compounds 1—3 showed distinct cytotoxic activity against the tested human cancer cell lines.