Anti-inflammatory triterpene saponins of Pithecellobium dulce: characterization of an echinocystic acid bisdesmoside
1994
Sahu, N.P. | Mahato, S.B.
A new bisdesmodic triterpenoid saponin, dulcin was isolated from the seeds of Pithecellobium dulce and was identified as 3-O-[beta-D-glucopyranosyl (1 leads to 2)-alpha-L-arabinopyranosyl]-28-O-[beta-D-xylopyranosyl (1 leads to 6)-beta-D-glucopyranosyl]-echinocystic acid. The known oleanolic acid saponin P(E), oleanolic acid 3-O-beta-D-glucopyranosyl (1 leads to 2)-alpha-L arabinopyranoside was also obtained. The structural features were elucidated by a combination of spectroscopic methods and some chemical transformations.
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