Chemotaxonomic value of flavonoids in Chromolaena congesta (Asteraceae)
2017
de Oliveira, Josiane Aline Monteiro | Bernardi, Darlon Irineu | Balbinot, Rodolfo Bento | da Silva Avíncola, Alexandre | Pilau, Eduardo | do Carmo, Marta Regina Barrotto | Sarragiotto, Maria Helena | Baldoqui, Debora Cristina
The phytochemical investigation on the aerial parts of Chromolaena congesta led to the isolation of nine flavonoids, known in the literature as genkwanin (1) kumatakenin (2) acacetin (3), kaempferol 3-methyl ether (4), apigenin (5), apigenin 5,7-dimethyl ether (6), apigenin 5-methyl ether (7), luteolin (8) and kaempferol (9). The chemical structures were established on the basis of spectral evidence. All the compounds were isolated from this species for the first time. The results from the present study provide further information about the flavonoids as taxonomic marker of the genus Chromolaena, and the chemotaxonomic significance of these compounds were also summarized.
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