Zhongguo Zhongyao Zazhi 2009-Apr
[Studies on chemical constituents from leaves of Cassia alata].
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Resumo
OBJECTIVE
To isolate and identify chemical constituents of Cassia alata.
METHODS
Compounds were separated and purified by column chromatography with silica gel and Sephadex LH-20, elucidated by spectroscopic methods including 1D and 2D NMR, IR and MS techniques.
RESULTS
Twelve compounds were isolated from C. alata, which were identified as chrysoeriol (1), kaempferol (2), quercetin (3), 5,7,4'-trihydroflavanone (4), kaempferol-3-O-beta-D-glucopyranoside (5), kaempferol-3-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (6), 17-hydrotetratriacontane (7), n-dotriacontanol (8), n-triacontanol (9), palmitic acid ceryl ester (10), stearic acid (11), palmitic acid (12).
CONCLUSIONS
Compounds 3-12 were isolated from C. alata for the first time.
