Abstract
Two new saponins, gymnemic acid-VIII and -IX, were isolated from the water extract of leaves of Gymnema sylvestre R. Br. along with three known saponins, gymnemic acid III, IV, and V. Their structures, clarified on the basis of spectroscopic and chemical means, present rare examples of a hexulopyranoside moiety at 0-3’ on gymnemic acid-III and -IV, respectively.
Original language | English |
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Pages (from-to) | 2326-2328 |
Number of pages | 3 |
Journal | Chemical and Pharmaceutical Bulletin |
Volume | 38 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1990 |
Externally published | Yes |
Keywords
- D-arabino-2-hexulopyranose
- Gymnema sylvestre
- gymnemic acid
- gymnemic acid-IX
- gymnemic acid-VIII
- oxo-glycoside
ASJC Scopus subject areas
- Chemistry(all)
- Drug Discovery