Ypsilactosides A and B, Two New C(22)-Steroidal Lactone Glycosides from Ypsilandra thibetica
Lu, Y ; Xie, BB ; Chen, CX ; Ni, W ; Hua, Y ; Liu, HY
2011
发表期刊HELVETICA CHIMICA ACTA
ISSN0018-019X
卷号94期号:1页码:92-97
摘要Two new C(22)-steroidal lactone glycosides, ypsilactosides A (1) and B (2), were isolated from the EtOH extract of the whole plant of Ypsilandra thibetica. Their structures were established as (3 beta,5 alpha,16 beta,20S)-3,16-dihydroxy-6-oxopregnane-20-carboxylic acid gamma-lactone 3-(beta-D-glucopyranoside) (1) and (3 beta,16 beta)-3,16-dihydroxypregna-5,20-diene-20-carboxylic acid gamma-lactone 3-{O-alpha-L-rhamnopyranosyl-(1 -> 4)-O-alpha-L-rhamnopyranosyl-(1 -> 4)-O-[alpha-L-rhamnopyranosyl-(1 -> 2)]-beta-D-glucopyranoside} (2) on the basis of extensive spectroscopic analyses and chemical degradations.
关键词Saponins
资助信息Natural Science Foundation of Yunnan Province[2009CC019]; West Light Foundation of the Chinese Academy of Sciences[2908025712W1]; State Key Laboratory of Phytochemistry and Plant Resources in West China[540806321211]; Germplasm Bank of Wild Species; Kunming Institute of Botany
学科领域Chemistry
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/5431
专题植物化学与西部植物资源持续利用国家重点实验室
推荐引用方式
GB/T 7714
Lu, Y,Xie, BB,Chen, CX,et al. Ypsilactosides A and B, Two New C(22)-Steroidal Lactone Glycosides from Ypsilandra thibetica[J]. HELVETICA CHIMICA ACTA,2011,94(1):92-97.
APA Lu, Y,Xie, BB,Chen, CX,Ni, W,Hua, Y,&Liu, HY.(2011).Ypsilactosides A and B, Two New C(22)-Steroidal Lactone Glycosides from Ypsilandra thibetica.HELVETICA CHIMICA ACTA,94(1),92-97.
MLA Lu, Y,et al."Ypsilactosides A and B, Two New C(22)-Steroidal Lactone Glycosides from Ypsilandra thibetica".HELVETICA CHIMICA ACTA 94.1(2011):92-97.
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