来自舒氏葱鳞茎的甾体皂苷。

Steroidal saponins from the bulbs of Allium schubertii.

作者信息

Kawashima K, Mimaki Y, Sashida Y

机构信息

Tokyo College of Pharmacy, Japan.

出版信息

Phytochemistry. 1993 Mar;32(5):1267-72. doi: 10.1016/s0031-9422(00)95103-3.

DOI:10.1016/s0031-9422(00)95103-3

PMID:7763477

Abstract

Phytochemical examination of the fresh bulbs of Allium schubertii led to the isolation of four new steroidal saponins together with a known saponin. The structures of the new saponins were established by spectroscopic data, hydrolysis and chemical correlation as (25R and S)-5 alpha-spirostan-2 alpha,3 beta,6 beta-triol 3-O-beta-D-glucopyranosyl-(1-->2)-O-[4-O-benzoyl-beta-D-xylopyranosyl- (1-->3)]-O-beta-D-glucopyranosyl-(1-->4)-beta-D-galactopyranoside, (25R and S)-5 alpha-spirostan-2 alpha,3 beta,6 beta-triol 3-O-beta-D-glucopyranosyl-(1-->2)-O-[3-O-benzoyl-beta-D-xylopyranosyl- (1-->3)]-O-beta-D-glucopyranosyl-(1-->4)-beta-D-galactopyranoside, (25R and S)-5 alpha-spirostan-2 alpha,3 beta,6 beta-triol 3-O-beta-D-glucopyranosyl-(1-->2)-O-[4-O-(3S)-3-hydroxy-3-methylgluta royl- beta-D-xylopyranosyl-(1-->3)]-O-beta-D-glucopyranosyl-(1-->4)-beta-D- galactopyranoside and 26-O-beta-D-glucopyranosyl-(25R and S)-5 alpha-furostan-2 alpha,3 beta,6 beta,22 zeta,26-pentol 3-O-beta-D-glucopyranosyl-(1-->2)-O-[beta-D-xylopyranosyl-(1-->3)]-O-bet a- D-glucopyranosyl-(1-->4)-beta-D-galactopyranoside, respectively.

摘要

对舒氏葱新鲜鳞茎进行植物化学研究，从中分离出四种新的甾体皂苷以及一种已知皂苷。通过光谱数据、水解和化学关联确定了新皂苷的结构，分别为(25R和S)-5α-螺旋甾烷-2α,3β,6β-三醇3-O-β-D-吡喃葡萄糖基-(1→2)-O-[4-O-苯甲酰基-β-D-吡喃木糖基-(1→3)]-O-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷、(25R和S)-5α-螺旋甾烷-2α,3β,6β-三醇3-O-β-D-吡喃葡萄糖基-(1→2)-O-[3-O-苯甲酰基-β-D-吡喃木糖基-(1→3)]-O-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷、(25R和S)-5α-螺旋甾烷-2α,3β,6β-三醇3-O-β-D-吡喃葡萄糖基-(1→2)-O-[4-O-(3S)-3-羟基-3-甲基戊二酰基-β-D-吡喃木糖基-(1→3)]-O-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷和26-O-β-D-吡喃葡萄糖基-(25R和S)-5α-呋甾烷-2α,3β,6β,22ζ,26-五醇3-O-β-D-吡喃葡萄糖基-(1→2)-O-[β-D-吡喃木糖基-(1→3)]-O-β-D-吡喃葡萄糖基-(1→4)-β-D-吡喃半乳糖苷。