title: Three new compounds from Dictamnus dasycarpus.
abstract: Phytochemical investigation of the ethyl acetate extracts from root barks of Dictamnus dasycarpus led to the isolation of three new compounds, named as dasycarpusenester A (1), dasycarpusester B (2), dasycarpusacid (3). Their structures were elucidated as (2S)-4-(2,2-dimethyl-5-oxotetrahydrofuran-3-yl)-2-hydroxypent-3-enoic acid methyl ester (1), (2R)-4-(2,2-dimethyl-5-oxotetrahydrofuran-3-yl)-2-hydroxypent-3-anoic acid methyl ester (2), and (2S)-4-(2,2-dimethyl-5-oxotetrahydrofuran-3-yl)-2-hydroxypent-3-anoic acid (3), respectively, on the basis of modern spectroscopic methods and chemical analysis.
authors.affiliation: School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.
authors.forename: Li-Na
authors.initials: LN
authors.lastname: Guo
authors.forename: Yue-Hu
authors.initials: YH
authors.lastname: Pei
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Xuan
authors.initials: X
authors.lastname: Lu
authors.forename: Hao
authors.initials: H
authors.lastname: Xu
authors.forename: Ji-Cheng
authors.initials: JC
authors.lastname: Liu
mesh_terms: D036905:Dictamnus / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005229:Fatty Acids, Monounsaturated / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010421:Pentanoic Acids / Q000737:chemistry / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D005229:Fatty Acids, Monounsaturated; D005663:Furans; D010421:Pentanoic Acids; C571022:dasycarpusacid; C571020:dasycarpusenester A; C571021:dasycarpusenester B