title: Phenolic compounds from the twigs and leaves of Tara (Caesalpinia spinosa).
abstract: Two new homoisoflavans, 4'-hydroxy-7-methoxy-3-benzyl-2H-chromene (1) and 3,4-cis-di-O-3-hydroxy-7-methoxy-3-(4-hydroxybenzyl)-4-ethoxychroman (2), one new coumarin, 7-methoxy-3-(4-hydroxybenzyl)coumarin (4), together with seven known phenolic compounds, bonducellin (3), anemarcoumarin A (5), (+)-syringaresinol (6), curuilignan D (7), scopoletin (8), and p-hydroxybenzaldehyde (9), were isolated from Tara (Caesalpinia spinosa Kuntze). The structures of the new compounds were characterized from their 1D and 2D NMR spectral data. All the compounds were isolated from this plant for the first time.
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.|b Yunnan Institute of Materia Medica , Kunming 650111 , China.
authors.forename: Dong-Yang
authors.initials: DY
authors.lastname: He
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Yuan-Ping
authors.initials: YP
authors.lastname: Li
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Hong-Bo
authors.initials: HB
authors.lastname: Tang
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Lei
authors.initials: L
authors.lastname: Luo
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Rui-Jing
authors.initials: RJ
authors.lastname: Ma
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Ji-Hua
authors.initials: JH
authors.lastname: Wang
authors.affiliation: a Faculty of Chemistry and Chemical Engineering , Yunnan Normal University , Kunming 650111 , China.
authors.forename: Li-Qin
authors.initials: LQ
authors.lastname: Wang
mesh_terms: D001578:Benzopyrans; D029911:Caesalpinia / Q000737:chemistry*; D003374:Coumarins; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry
chemical_list: C000609959:3,4-cis-di-O-3-hydroxy-7-methoxy-3-(4-hydroxybenzyl)-4-ethoxychroman; C000609958:4'-hydroxy-7-methoxy-3-benzyl-2H-chromene; C000609960:7-methoxy-3-(4-hydroxybenzyl)coumarin; D001578:Benzopyrans; D003374:Coumarins; D010636:Phenols
keywords: 3-benzyl coumarin; Caesalpinia spinosa; Leguminaceae; Tara; homoisoflavan