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Flavonoids from the Stem-bark of Oroxylum indicum  

Mohanta, Bikas Chandra (Department of Chemistry, Tripura University)
Arima, Shio (School of Pharmaceutical Sciences, Kitasato University)
Sato, Nariko (School of Pharmaceutical Sciences, Kitasato University)
Harigaya, Yoshihiro (School of Pharmaceutical Sciences, Kitasato University)
Dinda, Biswanath (Department of Chemistry, Tripura University)
Publication Information
Natural Product Sciences / v.13, no.3, 2007 , pp. 190-194 More about this Journal
Abstract
Two new flavonoid compounds, 8,8'-bisbaicalein 1 and baicalein-7-O-caffeate 2 along with six known flavonoids, baicalein, chrysin, scutellarein, 6-hydroxyluteolin, 6-methoxyluteolin and baicalein-7-Oglucoside and ${\beta}-sitosterol$ have been isolated from the stem-bark of Oroxylum indicum (Bignoniaceae) and identified on the basis of spectroscopic and chemical studies. 6-Hydroxyluteolin and 6-methoxyluteolin are reported for the first time from this plant.
Keywords
Oroxylum indicum (Bignoniaceae); flavonoids; 8,8''-bisbaicalein; baicalein-7-O-caffeate; 6-hydroxyluteolin; 6-methoxyluteolin; baicalein-7-O-glucoside;
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