Four pregnane glycosides, boucerosides AI, AII, BI and BII, from Boucerosia aucheriana
作者:Koji Hayashi、Ikuko Iida、Yumiko Nakao、Yoshihiro Nakao、Koh Kaneko
DOI:10.1016/0031-9422(88)83045-0
日期:1988.1
Abstract Four new glycosides were isolated from Boucerosia aucheriana. The structures of boucerosides AI, AII, BI, and BII were deduced on the basis of chemical and spectral evidence as boucerogenin I 3-O-β- d -glucopyranosyl-(1→4)-6-deoxy-3-O-methyl-β- d -allopyranosyl-(1→4)-β- d -oleandropyranosyl-(1→4)-β- d -cymaropyranoside, boucerogenin II 3-O-β- d -glucopyranosyl-(1→4)-6-deoxy-3-O-methyl-β- d
摘要 从Boucerosia aucheriana 中分离得到4 种新苷。boucerosides AI、AII、BI 和 BII 的结构是基于化学和光谱证据推断为 boucerogenin I 3-O-β-d-吡喃葡萄糖基-(1→4)-6-deoxy-3-O-methyl -β- d -别吡喃糖基-(1→4)-β- d -夹竹桃基吡喃糖基-(1→4)-β- d -cymaropyranoside, boucerogenin II 3-O-β-d-吡喃葡萄糖基-(1→4)-6 -deoxy-3-O-methyl-β-d -allopyranosyl-(1→4)-β-d -oleandropyranosyl-(1→4)-β-d -cymaropyranoside, boucerogenin I 3-O-β-d-glucopyranosyl -(1→4)-6-deoxy-3-O-methyl-β-d