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Bacopasaponin D--a pseudojujubogenin glycoside from Bacopa monniera
S Garai1, S B Mahato, K Ohtani
1Indian Institute of Chemical Biology, Jadavpur, Calcutta, India.
Phytochemistry
|September 1, 1996
Abstract:
A new dammarane-type pseudojujubogenin glycoside, bacopasaponin D, has been isolated from the reputed Indian medicinal plant Bacopa monniera and defined as 3-O-[alpha-L-arabinofuranosyl(I-->2)beta-D-glucopyranosyl]pseudojujub ogenin by spectroscopic methods and some chemical transformations. The 13C signals of the saponin were assigned by DEPT, 1H-1H COSY and HSQC techniques.