Two New Compounds Isolated from Liriope muscari

摘要

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