Adnyana I K, Tezuka Y, Awale S, Banskota A H, Tran K Q, Kadota S
Institute of Natural Medicine, Toyama Medical and Pharmaceutical University, Sugitani, Japan.
Chem Pharm Bull (Tokyo). 2000 Aug;48(8):1114-20. doi: 10.1248/cpb.48.1114.
Six new triterpene glucosides, quadranosides VI-XI (1-6), belonging to three different [ursane- (1-4), oleanane- (5) and lupane-type (6)] triterpene classes, have been isolated from a MeOH extract of the seeds of Combretum quadrangulare KURZ (Combretaceae), together with nine known compounds, rosamutin (7), 28-O-beta-D-glucopyranosyl-6beta,23-dihydroxytormentic acid (8), arjunetin (9), arjunglucoside II (10), combreglucoside (11), chebuloside II (12), vitexin (13), (+)-catechin (14) and (-)-epigallocatechin (15). The structures of these compounds were elucidated by spectroscopic analysis.
从四角风车子（使君子科）种子的甲醇提取物中分离出六种新的三萜糖苷，即四方糖苷VI - XI（1 - 6），它们属于三种不同的三萜类[乌苏烷型（1 - 4）、齐墩果烷型（5）和羽扇豆烷型（6）]，同时还分离出九种已知化合物，分别是蔷薇苷（7）、28 - O - β - D - 吡喃葡萄糖基 - 6β,23 - 二羟基 tormentic 酸（8）、arjunetin（9）、arjunglucoside II（10）、使君子糖苷（11）、诃子糖苷II（12）、牡荆素（13）、（+） - 儿茶素（14）和（ - ） - 表没食子儿茶素（15）。通过光谱分析阐明了这些化合物的结构。
