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Quassinoids and Other Constituents from Picrasma crenata

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2001

Year

Abstract

Abstract 16-β-O-methylneoquassin and 16-β-O-ethylneoquassin, and four known quassi­ noids have been isolated together with coniferyl aldehyde, coniferin, cantin-6-one, 4,5-di-methoxycantin-6-one and (+)-neo-olivil from the wood of Picrasma crenata. Their structures were determined on basis of spectroscopic and X-ray analysis.