Now showing items 1-3 of 3
Flavonoids from Chiococca braquiata (Rubiaceae)
(Journal of the Brazilian Chemical Society, 2004-07-01) [Artigo]
A new flavonol 4′-methoxykaempferol-7-(acetyloxy)-3,5-O-α-L- rhamnoside (1), was isolated from the leaves of Chiococca braquiata, along with three known flavonoids apigenin, 7-O-methoxyquercetrin and quercetrin and four ...
Gastric antiulcer activity of Syngonanthus arthrotrichus SILVEIRA
(Biological & Pharmaceutical Bulletin, 2004-03-01) [Artigo]
Syngonanthus arthrotrichus SILVEIRA, popularly known as sempre-vivas mini-saia, is found in mountains of the Espinhaco range in the Brazilian states of Bahia and Minas Gerais. Extracts of this species contain several ...
Bioactive pyrones and flavonoids from Cryptocarya ashersoniana seedlings
(Arkivoc, 2004-01-01) [Artigo]
The bioassay directed fractionation of the EtOH extract from leaves of Cryptocarya ashersoniana seedlings led to the isolation of two flavonol glucosides: iso-quercitrin and hyperin, which exhibited free radical scavenging ...