The formation, separation and  structural elucidation of the secondary sapogenins of gypenosides

Acta Chimica Sinica ›› 1993, Vol. 51 ›› Issue (7): 708-712. Previous Articles Next Articles

Original Articles

绞股蓝皂苷酸水解次生苷元的分离与鉴定

马建标;赵存祥;范云鸽;何炳林

南开大学高分子化学研究所

发布日期:1993-07-15

The formation, separation and structural elucidation of the secondary sapogenins of gypenosides

MA JIANBIAO;ZHAO CUNXIANG;FAN YUNGE;HE BINGLIN

Published:1993-07-15

Abstract

Gypenosides, a series of dammarane-type saponins from Gynostemma pentaphyllum (Thunb.) Makino, were hydrolyzed with 5% sulfuric acid to afford a new secondary sapogenin (20R,25S)-12b,25-epoxy-20,26-cyclodammarane-2a,3b-diol in addition to the known panaxadiol, 2a-hydroxypanaxadiol, and (20R,25S)-12b,25-epoxy-20,26-cyclodammaran-3b-ol. The mol. structure of the new secondary sapogenin was elucidated by means of spectroscopic methods and x-ray crystallog. anal.

Key words: REACTION MECHANISM, SAPONINS, X-RAY DIFFRACTION ANALYSIS, HYDROLYSIS, DAMMARAN, TRITERPENE

CLC Number:

O631.3

Cite this article

MA JIANBIAO;ZHAO CUNXIANG;FAN YUNGE;HE BINGLIN. The formation, separation and structural elucidation of the secondary sapogenins of gypenosides[J]. Acta Chimica Sinica, 1993, 51(7): 708-712.

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绞股蓝皂苷酸水解次生苷元的分离与鉴定

The formation, separation and structural elucidation of the secondary sapogenins of gypenosides

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