📜(3β,20S,22R,25S)-Spirost-5-En-3-Yl β-D-Xylopyranosyl-(1->3)-β-D-Glucopyranosyl-(1->4)[α-L-Rhamnopyranosyl-(1->2)]-β-D-Glucopyranoside置于三氟乙酸体系中,用 水 作为反应溶剂,化学反应 1.0H,反应生成 薯蓣皂素
参考文献:来自埃及龟头兰的新甾体糖苷
标题:来自埃及龟头兰的新甾体糖苷
摘要:从广泛使用的非洲药用植物埃及龟头兰的根中分离出五种新的甾体糖苷.根据光谱和化学证据,它们的结构被确定为 (3β,12α,14β,16β)-12-Hydroxycholest-5-Ene-3,16-Diyl Bis(β-D-Glucopyranoside) (1),(3β,20S,22R,25R)-和 (3β,20S,22R,25S)-26-(β-D-吡喃葡萄糖基)-22-Methoxyfurost-5-En-3-Yl β-D-Xylopyranosyl-(13)-β-D-吡喃葡萄糖基-(14)[α-L-吡喃鼠李糖基-(12)]-β-D-吡喃葡萄糖苷(分别为 2 和 3)和 (3β,20S,22R,25R)-和 (3β,20S,22R,25S)-Spirost-5-En-3-Yl β-D-吡喃木糖基-(13)-β-D-吡喃葡萄糖基-(14)[α-L-吡喃鼠李糖基-(12)]-β-D-吡喃葡萄糖苷(分别为
DOI:10.1002/1522-2675(200204)85:4<1019::Aid-Hlca1019>3.0.Co;2-S