3,5,7,3′,5′-Pentahydroxyflavan and 3α-methoxyfriedelan from Humboldtia laurifolia
作者:Upasiri Samaraweera、Subramaniam Sotheeswaran、M. Uvais、S. Sultanbawa
DOI:10.1016/0031-9422(83)83047-7
日期:1983.1
Abstract The leaf, bark and timber extractives of Humboldtia laurifolia were investigated and the following compounds have been isolated: O -acetyloleanolic aldehyde, a sitosteryl ester, lupeol, sitosterol, a fatty acid, 5,7,4′-trihydroxyflavone (apigenin), (2 R ,3 R )-3,5,7,3′,5′-pentahydroxyflavan and 3α-methoxyfriedelan. The latter two compounds are new natural products.
摘要 研究了 Humboldtia laurifolia 的叶、树皮和木材提取物,并分离出了以下化合物:O-乙酰齐墩果醛、一种谷甾醇酯、羽扇豆醇、谷甾醇、一种脂肪酸、5,7,4'-三羟基黄酮(芹菜素), (2 R ,3 R )-3,5,7,3',5'-五羟基黄烷和 3α-甲氧基弗里德聚糖。后两种化合物是新的天然产物。