Two New Compounds Isolated from<em> Liriope muscari</em>

Abstract

Two new compounds, (2<em>S</em>,3<em>R</em>)-methyl 7-hydroxy-2-(4-hydroxy-3-methoxy-phenyl)-3-(hydroxymethyl)-2,3-dihydrobenzofuran-5-carboxylate (<strong>1</strong>) and (4<em>R,</em>5<em>S</em>)-5-(3-hydroxy-2,6-dimethylphenyl)-4-isopropyldihydrofuran-2-one (<strong>2</strong>), tentatively named norcurlignan and limlactone, respectively, were isolated from <em>Liriope muscari</em>, together with the known compound (−)-pinoresinol (<strong>3</strong>). The structures of these compounds were elucidated and characterized on the basis of 1D NMR, 2D NMR, CD and MS data. The <em>in vitro</em> antioxidant activities of compounds <strong>1</strong>–<strong>3</strong> were assessed by the DPPH and ABTS scavenging methods.

Keywords

• liliaceae
• &lt;em&gt;Liriope muscari&lt;/em&gt;
• norcurlignan
• limlactone
• antioxidant activity