[Studies on chemical constituents of Gynostemma compressum].
Four new saponins, gycomoside I-IV, were isolated from the aerial part of Gynostemma compressum X.X. Chen et D.R. Liang. The structures were elucidated on the basis of spectral and chemical evidences as 1 beta,3 beta,12 beta,20(S),26-pentahydroxy-dammar- 24(25)-en-20(S)-O-beta-D-glucopyranosyl1-6--beta-D-glucopyranoside (gycomoside I); 1 beta,3 beta,12 beta,20(S)-tetrahydroxy-dammar-24(25)-en-3-O- beta-D-glucopyranosyl-20(S)-O-beta-D-glucopyranosyl1-6--beta-D-glu copyranoside (gycomoside II); 1 beta,3 beta,12 beta,20(S), 26-pentahydroxy-dammar-24(25)-en-20(S)-O- beta-D-glucopyranoside (gycomoside III) and 1 beta,3 beta,12 beta,20(S),26-pentahydroxy-dammar-24(25)- en-3-O-beta-D-glucopyranosyl-20(S)-O-beta-D-glucopyranosyl1-6--bet a-D-glucopyranoside (gycomoside IV).
Ding
S L
SL
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing.
Zhu
Z Y
ZY
D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
D004365:Drugs, Chinese Herbal; D012503:Saponins