title: A new neolignan glycoside from the leaves of Acer truncatum.
abstract: A new neolignan glycoside, (7R,8R)-7,8-dihydro-9'-hydroxyl-3'-methoxyl- 8-hydroxymethyl-7-(4-hydroxy-3-methoxyphenyl)-1'-benzofuranpropanol 9'-O-beta-D- glucopyranoside (1) was isolated from the leaves of Acer truncatum along with (7R,8R)-7,8-dihydro-9'-hydroxyl-3'-methoxyl-8-hydroxymethyl-7-(4-O-alpha-L-rhamno- pyranosyloxy-3-methoxyphenyl)-1'-benzofuranpropanol (2), schizandriside (3), lyoniresinol (4), berchemol (5), (-)-pinoresinol-4-O-beta-D-glucopyranoside (6), hecogenin (7), chlorogenic acid (8) and neochlorogenic acid (9). Their structures were elucidated on the basis of extensive spectroscopic data. The absolute configuration of compounds 1 was established by its CD spectrum. The antibacterial activities of compounds 1-7 were evaluated.
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: Wei
authors.initials: W
authors.lastname: Ni
authors.forename: Jin-Yang
authors.initials: JY
authors.lastname: Dong
authors.forename: Jun-Zhu
authors.initials: JZ
authors.lastname: Li
authors.forename: Chang-Xiang
authors.initials: CX
authors.lastname: Chen
authors.forename: Hai-Yang
authors.initials: HY
authors.lastname: Liu
mesh_terms: D031002:Acer / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D002247:Carbon Isotopes; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D018515:Plant Leaves / Q000737:chemistry*; D011522:Protons
chemical_list: D000900:Anti-Bacterial Agents; D002247:Carbon Isotopes; D006027:Glycosides; D017705:Lignans; D011522:Protons