title: Complete 1H and 13C assignments of 8-C-beta-D-[2-O-(E)-p-coumaroyl]glucopyranosyl-2-(2-hydroxy)propyl-7-methoxy-5-methylchromone.
abstract: 1H and 13C NMR spectra of 8-C-beta-D-[2-O-(E)-p-coumaroyl] glucopyranosyl-2-(2-hydroxy)propyl-7-methoxy-5-methylchromone were completely assigned by 2D NMR observations. Especially the 1H assignments of the glucosyl and hydroxyl protons were achieved by utilizing HMQC, HMBC, 1H-1H COSY and DEPT techniques together with a heavy water exchange 1H NMR experiment.
authors.affiliation: State Key laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Meng
authors.forename: B Z
authors.initials: BZ
authors.lastname: Yan
authors.forename: H M
authors.initials: HM
authors.lastname: Wang
authors.forename: G F
authors.initials: GF
authors.lastname: Hu
authors.forename: F Y
authors.initials: FY
authors.lastname: Liu
authors.forename: Y G
authors.initials: YG
authors.lastname: Song
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000504:Aloe / Q000378:metabolism*; D002247:Carbon Isotopes; D002681:China; D002867:Chromones / Q000032:analysis* / Q000737:chemistry / Q000592:standards*; D003198:Computer Simulation; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards*; D008956:Models, Chemical; D008958:Models, Molecular; D010936:Plant Extracts / Q000032:analysis / Q000737:chemistry / Q000592:standards; D011522:Protons; D012015:Reference Standards
chemical_list: D002247:Carbon Isotopes; D002867:Chromones; D010936:Plant Extracts; D011522:Protons