The flower heads of Microliabum polymnioides afforded scopoletin, 5,4'-dihydroxy-3,6,7-trimethoxyflavone, 3,5,4'-trihydroxy-6,7-dimethoxyflavone and 3,5,7,4'-tetrahydroxy-6-methoxyflavone. The leaves contained hexadecanoic acid, phytol and docosane. This is the first report on the presence of 6-methoxyflavonoids in Microliabum genus.
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The flower heads of Microliabum polymnioides afforded scopoletin, 5,4'-dihydroxy-3,6,7-trimethoxyflavone, 3,5,4'-trihydroxy-6,7-dimethoxyflavone and 3,5,7,4'-tetrahydroxy-6-methoxyflavone. The leaves contained hexadecanoic acid, phytol and docosane. This is the first report on the presence of 6-methoxyflavonoids in Microliabum genus.
View Article and Find Full Text PDFTerpenoids from Microliabum polymnioides.
Phytochemistry
September 2004
Consejo de Investigación, Universidad Nacional de Salta, 4400 Salta, Argentina.
The phytochemical study of M. polymnioides led to the isolation of two sesquiterpene lactones namely: 11alphaH-dihydrozaluzanin E and 1beta-hydroxy-4-oxo-11betaH-4-noreudesman-6,12-olide. Their structures were determined by spectroscopic methods.
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