Studies on the Constituents of Scutellaria Species. XI. : On the Flavonoid Constituents of the Aerial Parts of Scutellaria indica L.

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From the aerial parts of Scutellaria indica L., five new chalcones (I-V) were isolated, together with (2S)-5,6,7,2', 3', 4', 5'-heptamethoxyflavanone, scutellarein 7-O-β-D-glucopyranoside, chrysin, apigenin, luteolin, scutellarein, isoscutellarein, chrysin 7-O-glucuronide, apigenin 7-O-glucuronide, scutellarin and isoscutellarein 8-O-glucuronide. The structures of I-V were shown to be 2'-hydroxy-2,3,4,5,4', 5', 6'-heptamethoxychalcone, 2,3,4,5,2', 4', 5', 6'-octamethoxychalcone, 2'-hydroxy-2,3,4,5,6'-pentamethoxy-4', 5'-methylenedioxychalcone, 2,3,4,5,2', 6'-hexamethoxy-4,5-methylenedioxychalcone, 2,2-dihydroxy-3,4,5,6'-tetramethoxy-4', 5'-methylenedioxychalcone, respectively, on the basis of the chemical and spectral data. Compound I has already been synthesized.
公益社団法人日本薬学会の論文
1989-03-25