Obovatol is a biphenolic anti-inflammatory, anxiolytic, and nootropic isolated from the bark of Magnolia obovata. It is a biphenyl lignan.Obovatol and obovatal, novel biphenyl ether lignans from the leaves of Magnolia obovata Thunb. K Ito, T Iida, K Ichino, M Tsunezuka and M Hattori, … and Pharmaceutical Bulletin, 1982
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