title: Three new flavanols from Daphne giraldii.
abstract: Three new flavanols, 5-p-hydroxybenzoxy-7-hydroxyl-8-ethoxycarbonyl-( - )-afzelechin (1), 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-ethoxycarbonyl-( - )-afzelechin (2), and 5-p-hydroxybenzoxy-7-(2, 3, 5-trihydroxybenzoxy)-8-methoxycarbonyl-( - )-afzelechin (3), were isolated from Daphne giraldii Nitsche and their structures were elucidated by spectroscopic methods, especially by 2D-NMR and MS analyses.
authors.affiliation: Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Su
authors.forename: Zhi-Jun
authors.initials: ZJ
authors.lastname: Wu
authors.forename: Yun-Heng
authors.initials: YH
authors.lastname: Shen
authors.forename: Chuan
authors.initials: C
authors.lastname: Zhang
authors.forename: Hui-Liang
authors.initials: HL
authors.lastname: Li
authors.forename: Rui-Hui
authors.initials: RH
authors.lastname: Liu
authors.forename: Wei-Dong
authors.initials: WD
authors.lastname: Zhang
mesh_terms: D032364:Daphne / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure
chemical_list: D004365:Drugs, Chinese Herbal; D005419:Flavonoids; C404987:flavan-3-ol