Chemical and Pharmaceutical Bulletin p. 3354 - 3360 (1984)
Update date:2022-08-04
Topics:
Iinuma
Tanaka
Matsuura
2',3',4',5,5',6,7,8-Octamethoxy- (Ia) and 2',3',4',5,5',6,7-heptamethoxyflavone (IIa) and their position isomers substituted with tetramethoxyl groups in ring B were synthesized to confirm the structures of agehoustin A and agehoustin B isolated from Ageratum houstonianum. The characteristics of the synthesized flavones were investigated by spectroscopic methods.
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