云南匙羮藤甙A和B的结构  

GYMNEMAROSIDE A AND B FROM GYMNEMA YUNNANENSE

作　　者：张壮鑫[1] 陈纪军[1] 周俊[1] 

机构地区：[1]中国科学院昆明植物研究所植物化学开放实验室,昆明650204

出　　处：《云南植物研究》1991年第1期75-80,共6页Acta Botanica Yunnanica

基　　金：国家自然科学基金会;瑞典国际基础科学基金

摘　　要：从云南匙羹藤(Gymnema yunnaflense Tsiang)中分离得到2个新C_(21)甾体甙,命名为云南匙羹藤甙A(Ⅰ)和B(Ⅱ)(gymnemaroside A, B)。据化学反应和光谱数据,推定其结构分别为:本波甙元3-氧-β-D-葡萄糖吡喃基-(1→4)-3-氧-甲基-6-去氧-β-D阿洛糖吡喃基-(1→4)-β-D-加拿大麻糖吡喃基-(1→4)-β-D-加拿大麻糖吡喃甙〔penupogenin 3-O-β-D-glucopyranosyl-(1→4)-3-O-methyl-6-deoxy-β-D-allopyranosyl-(1→4)-β-D-cymaropyranosyl-(1→4)-β-D-cymaropyranoside〕和吉马甙元3-氧-β-D-葡萄糖吡喃基-(1→4)-3-氧-甲基-6-去氧-β-D-阿洛糖吡喃基-(1→4)-β-D-加拿大麻糖吡喃基-(1→4)-β-D-加拿大麻糖吡喃甙〔symnemarsgenm 3-O-β-D-glucopyranosyl-(1→4)-3-O-methyl-6-deoxy-β-D-allopyranosyl-(1→4)-β-D-cymaropyranosyl-(1→d)-β-D-cymaropyranoside〕。From the whole plant of Gymnema yunnanense Tsiang, two new C21 steroidal glycosides named gymnemaroside A(Ⅰ) and B(Ⅱ) were isolated. On the basis of chemical and spectral evidence, their structures were elucidated as penupogenin 3-Q-β -D-glucopyranosyl- (1→4 )- 3 -0-methyl- 6 -deoxy-β-D-allopyranosyl- (1→4 ) -β-D-cymaropyranosyl-( 1→4 )-p-D-cymaropyranoside and gymnemarsgenin 3-0-β-D-gluco -pyranosyl-( 1→4 )-3-O-methyl-6-deoxy-p-D-allopyranosyl-( 1→4)-β-D-cymaropyran -osyl-( 1→4 )-β-D-cymaropyranoside, respectively.

关 键 词：云南匙羹藤 化学成分 

分 类 号：Q949.776.6[生物学—植物学]