Abstract
The EtOH extract of the roots and rhizomes of Clematis mandshurica afforded two new lignans clemomanshurinane C (1) and clemomanshurinane D (2), and three known compounds (3–5). Their structures were elucidated on the basis of spectroscopic means and hydrolysis products. All compounds displayed moderate inhibitory activity against enzyme lipoxygenase.
Graphical Abstract
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