Flavonoids from Combretum lanceolatum Pohl

This work describes the isolation and characterization of four flavonoids from the methanolic extract of the flowers of Combretum lanceolatum. Their structures were elucidated on the basis of various spectroscopic methods (UV, IV and NMR, including 2D experiments) and identified as dillenetin (1), i...

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Published in:Biochemical systematics and ecology 2013-08, Vol.49, p.37-38
Main Authors: Araujo, Lais Cobianchi J., da Silva, Virgínia C., Dall'Oglio, Evandro L., Teixeira de Sousa, Paulo
Format: Article
Language:English
Subjects:
3-O-methyl quercetin
Combretaceae
Combretum
Combretum lanceolatum Pohl
Dillenetin
flowers
Isorhamnetin
nuclear magnetic resonance spectroscopy
Quercetin
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cited_by cdi_FETCH-LOGICAL-c397t-508c19888e750390be7d27a00fe842afa1421c2683d0f17ffc3d17391c225b023
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container_title Biochemical systematics and ecology
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creator Araujo, Lais Cobianchi J.
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description This work describes the isolation and characterization of four flavonoids from the methanolic extract of the flowers of Combretum lanceolatum. Their structures were elucidated on the basis of various spectroscopic methods (UV, IV and NMR, including 2D experiments) and identified as dillenetin (1), isorhamnetin (2), quercetin (3) and 3-O-methyl quercetin (4). Compounds (1), (2) and (4) were isolated from Combretum genus for the first time. •Flavonoids dillenetin (1), isorhamnetin (2), quercetin (3) and 3-O-methyl quercetin (4) were isolated for the first time from Combretum lanceolatum Pohl.•Compounds (1), (2) and (4) were described for the first time in Combretum genus.•Dillenetin (1) is a rare flavonoid and its isolation from Combretum genus is reported for the first time herein.
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subjects 3-O-methyl quercetin
Combretaceae
Combretum
Combretum lanceolatum Pohl
Dillenetin
flowers
Isorhamnetin
nuclear magnetic resonance spectroscopy
Quercetin
title Flavonoids from Combretum lanceolatum Pohl
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