(2S)-2,3-Dihydro-2-(1,3-benzodioxole-5-yl)-4H-1-benzopyran-7-ol;[S,(-)]-2-(1,3-Benzodioxol-5-yl)-3,4-dihydro-2H-1-benzopyran-7-ol;2α-(1,3-Benzodioxole-5-yl)chroman-7-ol
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