Nine new norlanostane-triterpenoid oligoglycosides (sarasinoside) were isolated from the Palauan marine sponge Asteropus sarasinosum and the structures of three major oligoglycosides named sarasinosides A1 (7), B1 (8), and C1 (4) have been determined on the basis of chemical and physicochemical evidence including the x-ray analysis of the sapogenol.
从帕劳海生海绵 Asteropus sarasinosum 中分离出 9 种新的正
羊毛甾烷三萜
寡糖苷(sarasinoside),并根据
化学性质确定了三种主要
寡糖苷的结构,即 sarasinoside A1 (7)、B1 (8) 和 C1 (4)。物理
化学证据,包括皂醇的 X 射线分析。