Two novel lavandulyl flavonoids, (2S)-7-methoxyl-4″, 5″ -dihydroxynorkurarinone (1) and (2S)-6″ -hydroxynorkurarinone-7-O-β-D-galactoside (2), were isolated from the rhizome of Sophora flavescens. Their structures were elucidated by spectral methods, including 2D NMR spectroscopy. Both compounds showed cytotoxic activity against Hela cells, with 2 being more active than 1.
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