Trifasciatosides A–J, Steroidal Saponins from <i>Sansevieria trifasciata</i>
作者:Rémy Bertrand Teponno、Chiaki Tanaka、Bai Jie、Léon Azefack Tapondjou、Tomofumi Miyamoto
DOI:10.1248/cpb.c16-00337
日期:——
of previously undescribed steroidal saponins, trifasciatosides E-J (5a, b-7a, b) including acetylated ones, together with twelve known compounds were isolated from the n-butanol soluble fraction of the methanol extract of Sansevieria trifasciata. Their structures were elucidated on the basis of detailed spectroscopic analysis, including (1)H-NMR, (13)C-NMR, (1)H-(1)H correlated spectroscopy (COSY), heteronuclear
从正丁醇可溶物中分离出四种先前未报告的甾体皂苷,曲霉皂苷AD(1-4),三对先前未描述的甾体皂苷,曲霉皂苷EJ(5a,b-7a,b)(包括乙酰基化合物)以及十二种已知化合物。虎尾草的甲醇提取物的一部分。在详细的光谱分析的基础上阐明了它们的结构,包括(1)H-NMR,(13)C-NMR,(1)H-(1)H相关光谱(COSY),异核单量子相干(HSQC),异核多键连接(HMBC),总相关光谱(TOCSY),核Overhauser增强和交换光谱(NOESY),电喷雾电离飞行时间(ESI-TOF)-MS和化学方法。化合物2、4和7a,b对HeLa细胞表现出中等的抗增殖活性。