A fatty acid, flavonoids, and steroids from Zingiber penisulare. I. Theilade (zingiberaceae)

Truong Thi To Chinh, Phan Minh Giang, Phan Tong Son

Abstract


The first chemical study of Zingiber penisulare I. Theilade (Zingiberaceae) resulted in the isolation of a fatty acid, eicosanoic acid (1), three kaempferol derivatives, 5-hydroxy-3,4',7-trimethoxyflavone  (2), 4',5-dihydroxy-7-methoxyflavonol (5), and 4',5-dihydroxy-3,7-dimethoxyflavone (6), b-sitosterol (3), and 6b-hydroxystigmast-4-ene-3-one (4). Their chemical structures were determined by spectroscopic analyses.

Keywords: Zingiber penisulare; Zingiberaceae; kaempferol; flavonol; stigmastane.

Keywords


Zingiber penisulare; Zingiberaceae; kaempferol; flavonol; stigmastane

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