title: Separation and identification of Taxifolin 3-O-glucoside isomers from Chamaecyparis obtusa (Cupressaceae).
abstract: Taxifolin 3-O-glucoside isomers, [(2R, 3R)-, (2R, 3S)-, (2S, 3R)- and (2S, 3S)-] were isolated from leaves of Chamaecyparis obtuse (Cupressaceae). Their structures were elucidated on the basis of UV, MS, CD, 1H- and 13C-NMR spectral data, including 2D shift correlation. It was found that the compounds could be distinguished by the use of 1H- and 13C-NMR spectral data.
authors.affiliation: Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0212, Japan.
authors.forename: Akiyo
authors.initials: A
authors.lastname: Sakushima
authors.forename: Kosei
authors.initials: K
authors.lastname: Ohno
authors.forename: Makusut
authors.initials: M
authors.lastname: Coskun
authors.forename: Koh-Ichi
authors.initials: K
authors.lastname: Seki
authors.forename: Kazue
authors.initials: K
authors.lastname: Ohkura
mesh_terms: D029780:Chamaecyparis / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D002942:Circular Dichroism; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification*; D007564:Japan; D008519:Medicine, Traditional; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011794:Quercetin / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification*; D013237:Stereoisomerism
chemical_list: D005960:Glucosides; C067156:taxifolin-3-glucopyranoside; D011794:Quercetin