Seven new sesquiterpenes, linderolides N-T (1-7), along with nine known compounds, were isolated from roots of Lindera strychnifolia (Lauraceae). Their structures were established by extensive spectroscopic analysis. The relative and absolute configurations were determined by NOESY and CD analysis, respectively. Among the isolated compounds, two new compounds, linderolide O (2) and linderolide P (3) inhibited lipopolysaccharide-stimulated nitric oxide production in murine RAW 264.7 macrophage cells, with IC values of 6.3 and 9.6μM, respectively.
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