摘要:
首次建立并采用了一种简便有效的合成胆甾烷和呋甾皂苷类似物的方法。遵循这一策略,从薯蓣皂苷元开始,三种新型胆甾烷皂苷类似物:(22S,25R)-3β,22,26-trihydroxy-cholest-5-ene-16-one 22-O-[O-α-L-rhamnopyranosyl- (1→2)-β-D-吡喃葡萄糖苷] 11, (25R)-3β,16β,26-trihydroxy-cholest-5-ene-22-one 16-O-[O-α-L-rhamnopyranosyl-(1 →2)-α-D-吡喃葡萄糖苷] 14 和 (25R)-3β,16β,26-trihydroxy-cholest-5-ene-22-one 16-O-[O-α-L-rhamnopyranosyl-(1→2 )-β-D-吡喃葡萄糖苷] 17、三种新型呋喃坦皂苷类似物:(22S,25R)-furost-5-ene-3β,22