ent-Beyerane diterpenoids from the heartwood of Excoecaria parvifolia
Abstract
Chromatographic fractionations of the toluene extract of the heartwood of Excoecaria parvifolia collected in Australia resulted in the isolation of 12 beyerane diterpenes (1-12), and the triterpene, lupeol. Four of the isolated diterpenoids (5-7 and 12) have unusual structures: ent-3-oxa-beyer-15-en-2-one, (5); ent-15,16-epoxy-2-hydroxy-19-norbeyer-1,4-dien-3-one (6); methyl ent-2,4-seco-15,16-epoxy-4-oxo-3,19-dinorbeyer-15-en-2-oate (7); and...
Paper Details
Title
ent-Beyerane diterpenoids from the heartwood of Excoecaria parvifolia
Published Date
Feb 1, 2007
Journal
Volume
68
Issue
4
Pages
546 - 553
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