Four new minor spirostanol glycosides from Helleborus thibetanus

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• 作者：Hui Zhang^a ; Yan-Fang Su^a ; ^b ; ^{suyanfang@tju.edu.cn} ; Feng-Ying Yang^a ; ^c
• 关键词：Helleborus ; Ranunculaceae ; Steroidal saponins ; Spirostanol saponins
• 刊名：Phytochemistry Letters
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：18
• 期：Complete
• 页码：213-219
• 全文大小：660 K
• 卷排序：18

文摘

Four new minor steroidal glycosides were isolated from Helleborus thibetanus. Structures were determined by 2D NMR, HRMS and hydrolysis. Steroidal glycosides with double bond at C-25 and glycosidation at 1-OH are unusual.