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Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

[Triterpenoids and steroids from Excoecaria agallocha].


PMID 18533497

Abstract

To study the chemical constituents of Excoecaria agallocha L. The constituents were isolated and purified by repeated column chromatography and their structures were elucidated by spectroscopic analysis. Six triterpenoids including taraxerone (1), beta-amyrin acetate (2), 3beta-[(2E,4E)-6-oxo-decadienoyloxy]-olean-12-ene (3), taraxerol (4), acetylaleuritolic acid (5), and cycloart-22-ene-3beta, 25-diol (6), and three steroids including beta-sitostenone (7), (24R)-24-ethylcholesta-4,22-dien-3-one (8), and beta-sitosterol (9) were isolated and identified from the stems and twigs of the mangrove plant E. agallocha. Compounds 5-8 were isolated from E. agallocha for the first time.

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