A furostanol saponin and phytoecdysteroid from roots of Helleborus orientalis
作者： Sebahat Akin , Huseyin Anil
DOI: 10.1007/S10600-007-0039-8
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摘要: A furostanol saponin mixture and a known phytoecdysteroid were isolated from the roots of Helleborus orientalis Lam. Their structures established as 26-[(β-D-glucopyranosyl)oxy]-22α-hidroxyfurosta-5,25(27)-dien-1β,3β,11α-triol (1a), 26-[(β-D-glucopyranosyl)oxy]-22α-methoxyfurosta-5,25(27)-dien-1β,3β,11α-triol (1b), 20-hydroxy-β-ecdyson-3-O-β-D-glycoside (2). Acid hydrolysis 1a,b gave (1β,3β,11α,22α)-22,26-dimethoxyfurosta-5,25(27)-dien-1,3,11-triol (aglycone 1) 2 20-hydroxy-β-ecdyson 2). elucidated by spectral analysis.
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