Phytochemistry p. 1085 - 1088 (1985)
Update date:2022-08-11
Topics:
Quijano, Leovigildo
Calderon, Jose S.
Gomez, G., Federico
Escobar, Edgar
Rios, Tirso
Ageratum houstonianum; Asteraceae; Eupatorieae; octasubstituted flavones; 3'-hydroxy-5,6,7,8,2',4',5'-heptamethoxyflavone; 5,3'-dihydroxy-6,7,8,2',4',5'-hexamethoxyflavone.Two new highly oxygenated flavones, were isolated from aerial parts of Ageratum houstonianum.Their structures were established as 3'-hydroxy-5,6,7,8,2',4',5'-heptamethoxyflavone and 5,3'-dihydroxy-6,7,8,2',4',5'-hexamethoxyflavone on the basis of spectral data and chemical degradation.The structure of the latter compound was confirmed by X-ray analysis.
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