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作 者 ：陈纪军 邱声祥 张壮鑫 周俊

期 刊 ：云南植物研究 1989年 11卷 02期 页码：1-3

关键词：匙羹藤属；云南匙羹藤；吉马甙元；

Keywords:Gymnema,

摘 要 ：从云南匙羹藤(Gymnema yunnanense Tsiang)的粗甙酸水解产物中分离得到6个C21甾体甙元。其中一个新甙元，命名为吉马甙元(gymnemarsgenin)，经光谱数据和化学反应证明其结构为12-β-氧-苯甲酰-20－氧-肉桂珊瑚甙元。

Abstract:From acidic hydrolysate of crude glycoside of Gymnema yun-nanense Tsiang, four known C21 steroidal aglycones--penupogenin (1), 20-0-cinnamoylsarcostin (2), sarcostin ( 3 ) , metaplexigenin (5), and a new aglycone named gymnemarsgenin ( 4 ) were isolated.Compound (4) , colorless needle from MeOH, mp 155-157 °C, [α]D+ 145.96 (c =0.51, CHCl3). On the bases of EI-MS and elemental analysis, gave molecular formula; C37H4408 (M+, 616). Compoud (4) liberated sarco-stin (3) on alkaline hydrolysis.

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