Studies on the nepalese crude drugs. XI. On the flavonoid constituents of the aerial parts of Scutellaria discolor COLEBR.

From the aerial parts of Scutellaria discolor COLEBR., two new flavones (I and II) were isolated together with chrysin, wogonin, apigenin, luteolin, 5, 7-dihydroxy-8, 2'-dimethoxyflavone, 5, 7, 4'-trihydroy-8-methoxyflavone, 5, 7-dihydroxy-8, 2', 6'-trimethoxyflavone and chrysin 7-O-glucuronide. Compounds I and II were identified as 5, 7, 8-trihydroxyflavone 8-O-β-D-glucuronopyranoside and 5, 7, 2', 6'-tetrahydroxy-8-methoxyflavone 2'-O-β-D-(2-O-caffeoyl)glucopyranoside, based on spectral and chemical data.

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