摘要:
三种新的甾体糖苷,氰基木糖甙 F、G 和 H (1-3),与两种已知的甾体衍生物一起从金合欢 (Asclepiadaceae) 的根中分离出来。经光谱分析和化学方法鉴定,其结构为20-O-acetyl-8,14-seco-penupogenin-8-one 3-O-α-L-cymaropyranosyl-(1→4)-β- D-cymaropyranosyl-(1→4)-α-L-diginopyranosyl-(1→4)-β-D-cymaropyranoside (1), 2',3'-Z-gagaminine 3-O-α-L-cymaropyranosyl- (1→4)-β-D-cymaro-pyranosyl-(1→4)-α-L-diginopyranosyl-(1→4)-β-D-cymaropyranoside (2), 17-O-acetyl-kidjoranin 3- O-α-L-c