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Flavonóides das flores de Stiffitia chrysantha Mikan

By Oliveira Márcia Cristina Campos de, Carvalho Mário Geraldo de, Ferreira Dalva T. and Braz-Filho Raimundo


The flowers of Stiffitia chrysantha Mikam(Asteraceae) contain eriodictiol, quercetin, luteolin and b-D-glycopyranosil-sitosterol. These compounds and its derivatives were identified by their 1H and 13C NMR, infra-red and mass spectra data. The heteronuclear 2D NMR were used to confirm the assignments of the proton and carbon chemical shifts, it was used to eliminate definitively the ambiguous correlation reported in the literature for C-5 and C-9 of quercetin and C-23 and C-25 of b-D-glycopyranosil-sitosterol

Topics: Stiffitia chrysantha, Asteraceae, flavonoids, Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: Sociedade Brasileira de Química
Year: 1999
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