title: [Isolation and identification of phenolic constituents from Juncus effusus].
abstract: To study the phenolic constituents from the dry stem of Juncus effusus L. , the constituents were isolated by normal-phase and reverse-phase silica gel column chromatography from the EtOAc extract. Their structures were elucidated by spectral analysis. Six phenolic constituents were purified and identified as 7-carboxy-2-hydroxy-1-methyl-5-vinyl-9,10-dihydrophenanthrene (1) , 2,3-isopylidene-1-O-ferulic acid glyceride ( 2 ) , ( 2S )-2, 3-isopylidene-1-0-p-coumaroyl glyceride (3 ) , dehydroeffusal ( 4 ) , p-hydroxybenzaldehyde (5) and luteolin-5,3'-dimethyl ether (6). Compounds 1 and 2 are new compounds. Compounds 5 and 6 were isolated from Juncaceae plant for the first time. 13C NMR data of compound 6 were reported for the first time.
authors.affiliation: College of Life Sciences, South Central University for Nationalities, Wuhan 430074, China.
authors.forename: Hong-xia
authors.initials: HX
authors.lastname: Li
authors.forename: Tie-zhong
authors.initials: TZ
authors.lastname: Deng
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Hui-jin
authors.initials: HJ
authors.lastname: Feng
authors.forename: Guang-zhong
authors.initials: GZ
authors.lastname: Yang
mesh_terms: D000873:Anthracenes / Q000737:chemistry / Q000302:isolation & purification*; D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification*; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification; D019684:Magnoliopsida / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000873:Anthracenes; D001547:Benzaldehydes; D003373:Coumaric Acids; D047309:Flavones; D010636:Phenols; C011483:4-hydroxybenzaldehyde