New Steroidal Constituents of the Bulbs of Camassia cusickii S. WATS.
作者:Yoshihiro MIMAKI、Yutaka SASHIDA、Kazuhiro KAWASHIMA
DOI:10.1248/cpb.40.148
日期:——
Seven new steroidal compounds were isolated from the fresh bulbs of Camassia cusickii S. WATS. Their structures were detemined by spectroscopic analysis and hydrolysis to be (25R)-5α-spirostan-3β, 6α-diol (chlorogenin) 6-O-β-D-xylopyranosyl-(1→3)-β-D-glucopyranoside (1), chlorogenin 6-O-β-D-xylopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranoside (2), chlorogenin 6-O-β-D-glucopyranosyl-(1→2)-O-[β-D-xylopyranosyl-(1→3)]-β-D-glucopyranoside (3), chlorogenin 6-O-β-D-fucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranoside(4), 22-O-methyl-26-O-β-D-glucopyranosyl-(25R)-5α-furostan-3β, 6α, 22ξ-triol 6-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside (5), 22-O-methyl-26-O-β-D-glucopyranosyl-(25R)-5α-furostan-3β, 6α, 22ξ-tiol 6-O-β-D-glucopyranosyl-(1→2)-O-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranoside (6) and 3β, 7β, 16β-trihydroxycholest-5en-23-one 3, 16-bis-O-β-D-glucopyranoside (camassioside)(7).
从 Camassia cusickii S. WATS 的新鲜球茎中分离出 7 种新的甾体化合物。通过光谱分析和水解确定其结构为(25R)-5α-spirostan-3β,6α-二醇(绿原素)6-O-β-D-吡喃木糖基-(1→3)-β-D-吡喃葡萄糖苷(1 )、绿原素 6-O-β-D-吡喃木糖基-(1→2)-O-[β-D-吡喃葡萄糖基-(1→3)]-β-D-吡喃葡萄糖苷 (2)、绿原素 6-O-β -D-吡喃葡萄糖基-(1→2)-O-[β-D-吡喃木糖基-(1→3)]-β-D-吡喃葡萄糖苷(3)、绿原素6-O-β-D-吡喃岩藻糖基-(1→ 2)-O-[β-D-吡喃葡萄糖基-(1→3)]-β-D-吡喃葡萄糖苷(4), 22-O-甲基-26-O-β-D-吡喃葡萄糖基-(25R)-5α-呋喃斯坦-3β, 6α, 22ψ-三醇 6-O-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃葡萄糖苷 (5), 22-O-甲基-26-O-β-D-吡喃葡萄糖基- (25R)-5α-呋喃斯坦-3β, 6α, 22ψ-tiol 6-O-β-D-吡喃葡萄糖基-(1→2)-O-[β-D-吡喃葡萄糖基-(1→3)]-β-D -吡喃葡萄糖苷 (6) 和 3β, 7β, 16β-三羟基胆固醇-5en-23-一 3, 16-二-O-β-D-吡喃葡萄糖苷(卡马西苷)(7)。