title: Two new lignans from Phyllanthus amarus.
abstract: Two new lignans, 3-(3,4-dimethoxy-benzyl)-4-(7-methoxy-benzo[1,3]dioxol-5-yl-methyl)-dihydrofuran-2-one (1) and 4-(3,4-dimethoxy-phenyl)-1-(7-methoxy-benzo[1,3]dioxol-5-yl)-2,3-bis-methoxymethyl-butan-1-ol (2), were isolated from the leaves of Phyllanthus amarus and their structures were established by spectral analysis. Additionally, eight known lignans were also isolated and characterized.
authors.affiliation: Central Institute of Medicinal and Aromatic Plants, Council of Scientific and Industrial Research, Lucknow, India.
authors.forename: Manju
authors.initials: M
authors.lastname: Singh
authors.forename: Neerja
authors.initials: N
authors.lastname: Tiwari
authors.forename: Karuna
authors.initials: K
authors.lastname: Shanker
authors.forename: Ram Kishore
authors.initials: RK
authors.lastname: Verma
authors.forename: Anil Kumar
authors.initials: AK
authors.lastname: Gupta
authors.forename: Madan Mohan
authors.initials: MM
authors.lastname: Gupta
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D007194:India; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D029803:Phyllanthus / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry
chemical_list: C547972:3-(3,4-dimethoxy-benzyl)-4-(7-methoxy-benzo(1,3)dioxol-5-yl-methyl)-dihydrofuran-2-one; C547973:4-(3,4-dimethoxy-phenyl)-1-(7-methoxy-benzo(1,3)dioxol-5-yl)-2,3-bis-methoxymethyl-butan-1-ol; D017705:Lignans; D015107:4-Butyrolactone