A New 3,4-<i>seco-</i>Lupane Derivative from <i>Lasianthus gardneri</i>
作者:Sabrina Dallavalle、Lalith Jayasinghe、B. M. M. Kumarihamy、Lucio Merlini、Loana Musso、Leonardo Scaglioni
DOI:10.1021/np030374g
日期:2004.5.1
A new seco-ring A lupane triterpene derivative (1), along with lupenone, lupeol, beta-sitosterol, ursolic acid, and stigmasterol 3-O-beta-d-glucoside, were isolated from a methanol extract of mature stems of Lasianthus gardneri, a shrub from the family Rubiaceae growing in Sri Lanka. The structure and stereochemistry of the new compound were determined using a combination of (13)C and (1)H homo- and