Phenolic constituents of Semecarpus anacardium

Prakasa Rao, N. S. ; Ramachandra Row, L. ; Brown, R. T. (1973) Phenolic constituents of Semecarpus anacardium Phytochemistry, 12 (3). pp. 671-681. ISSN 0031-9422

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GLC-MS analysis of methylated bhilawanol from S. anacardium nuts and its oxidation product, the methyl ester of an aromatic carboxylic acid, conclusively proved that it contains more than seven closely related compounds. Two of them are major components which were isolated and shown to be 1-pentadec-Δ5'-enyl-2,3-dimethoxybenzene (I) and 1-pent biflavanoids A, B and C have been also isolated from defatted nuts of S. anacardium. The first of these has been characterized as its methyl ethers. A1 and A2, for which biflavanone structures (VI) and (VII) are suggested on the basis of chemical and spectral evidence. The biflavanones B and C have been also characterized as their methyl ethers. Suggested structures are O-methyl derivatives of a IB-3', IIA-8-binaringenin (XIV) for the former and IB-3', IIA-8-biliquiritigenin (XV) for the latter.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Semecarpus anacardium; Anacardiaceae; Vesicant Catechol Derivatives; Bhilawanols; Biflavanoids; 8,3'-Binaringenin; 8,8'-Biliquiritigenin.
ID Code:33506
Deposited On:06 Jul 2011 10:08
Last Modified:06 Jul 2011 10:08

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