A New Lignan from Boschniakia himalaica

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From the ethanol extract of the whole plant of Boschniakia himalaica Hook. f. et. Thoms, a new and two known lignans have been isolated and identified as 7-methoxypinoresino 1, pinoresinol 2, and pinoresinol-O-β-D-glucopyranoside 3 respectively. Their structures have been established by spectroscopic methods.
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