1-hydroxy-4-oxo-2,5-ciclohadien-1-ethyl acetate has been isolated from leaves and fruits of Jacaranda mimosaefolia D. Don, Bignoniaceae growing in Rio Grande do Sul, Brasil.
A flavonoid was isolated from flowering stems of Achyrocline alata and structure was assigned to it by comparison with an authentic sample of 5-hydroxy-7, 8-dimethoxy-favonol.
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