title: Two new compounds isolated from Liriope muscari.
abstract: 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.
authors: National Institutes for Food and Drug Control, Beijing 100050, China. lwj115@163.com
authors: Wen-Jie
authors: WJ
authors: Li
authors: Zhi-Hao
authors: ZH
authors: Zhang
authors: Xian-Long
authors: XL
authors: Cheng
authors: Jing
authors: J
authors: Liu
authors: Yi
authors: Y
authors: He
authors: Chao
authors: C
authors: Zhou
authors: Ying
authors: Y
authors: Guo
authors: Rui-Chao
authors: RC
authors: Lin
authors: Gang-Li
authors: GL
authors: Wang
mesh_terms: D001572:Benzofurans / Q000737:chemistry / Q000302:isolation & purification*; D052160:Benzothiazoles / Q000737:chemistry; D001713:Biphenyl Compounds / Q000737:chemistry; D002850:Chromatography, Gel; D016166:Free Radical Scavengers / Q000737:chemistry / Q000302:isolation & purification*; D005609:Free Radicals / Q000737:chemistry; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification; D031424:Liriope Plant / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008516:Medicine, Chinese Traditional; D008968:Molecular Conformation; D015394:Molecular Structure; D010851:Picrates / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry
chemical_list: C576543:(2S,3R)-methyl 7-hydroxy-2-(4-hydroxy-3-methoxy-phenyl)-3-(hydroxymethyl)-2,3-dihydrobenzofuran-5-carboxylate; C576544:(4R,5S)-5-(3-hydroxy-2,6-dimethylphenyl)-4-isopropyldihydrofuran-2-one; D001572:Benzofurans; D052160:Benzothiazoles; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D005609:Free Radicals; D005663:Furans; D017705:Lignans; D010851:Picrates; D013451:Sulfonic Acids; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; C004931:1,1-diphenyl-2-picrylhydrazyl; C103298:pinoresinol