title: Four new compounds from the leaves of Acer truncatum.
abstract: Four new compounds, 3-(4-hydroxy-3,5-dimethoxyphenyl)propyl formate (1), 2,6-dimethoxy-4-[(1S)-3-methoxypropyl]phenol (2), (1R,2R)-4-[(3R)-3-hydroxybutyl]-3,3,5-trimethylcyclohex-4-ene-1,2-diol (3), and (1S,3R,3aR,6S,7S,9aR)-decahydro-1-(hydroxymethyl)-1,7-dimethyl-3a,7-methano-3aH-cyclopentacyclooctene (4) were isolated from the leaves of Acer truncatum, together with twelve known compounds. Their structures were elucidated on the basis of extensive spectroscopic techniques. The absolute configuration of compound 3 was established by the modified Mosher's method. All compounds were evaluated for antibacterial activities.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, Yunnan, PR China.
authors.forename: Lang-Ping
authors.initials: LP
authors.lastname: Dong
authors.forename: Hai-Yang
authors.initials: HY
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Ni
authors.forename: Jun-Zhu
authors.initials: JZ
authors.lastname: Li
authors.forename: Chang-Xiang
authors.initials: CX
authors.lastname: Chen
mesh_terms: D031002:Acer / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D001409:Bacillus cereus / Q000187:drug effects; D003511:Cyclohexanols / Q000737:chemistry* / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D005561:Formates / Q000737:chemistry* / Q000494:pharmacology; D006094:Gram-Positive Bacteria / Q000187:drug effects; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D011748:Pyrogallol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D012717:Sesquiterpenes / Q000737:chemistry* / Q000494:pharmacology
chemical_list: C518205:2,6-dimethoxy-4-(3-methoxypropyl)phenol; C518204:3-(4-hydroxy-3,5-dimethoxyphenyl)propyl formate; C518206:4-(3-hydroxybutyl)-3,3,5-trimethylcyclohex-4-ene-1,2-diol; D000900:Anti-Bacterial Agents; D003511:Cyclohexanols; D005561:Formates; D012717:Sesquiterpenes; C518207:decahydro-1-(hydroxymethyl)-1,7-dimethyl-3a,7-methano-3aH-cyclopentacyclooctene; D011748:Pyrogallol