title: Acetylated flavonol diglucosides from Meconopsis quintuplinervia.
abstract: Four acetylated flavonol diglucosides, quercetin 3-O-[2'''-O-acetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], quercetin 3-O-[2''',6'''-O-diacetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], isorhamnetin 3-O-[2'''-O-acetyl-beta-d-glucopyranosyl-(1-->6)-beta-d-glucopyranoside], and quercetin 3-O-[2'''-O-acetyl-alpha-l-arabinopyranosyl-(1-->6)-beta-d-glucopyranoside], together with five known flavonol glycosides quercetin 3-O-beta-d-glucopyranoside, kaempferol 3-O-beta-d-glucopyranoside, quercetin 3-O-[beta-d-galactopyranosyl-(1-->6)-glucopyranoside], isorhamnetin 3-O-[beta-d-galactopyranosyl-(1-->6)-beta-d-glucopyranoside], and kaempferol 3-O-[beta-d-glucopyranosyl-(1-->2)-beta-d-glucopyranoside] have been isolated from Meconopsis quintuplinervia. Their structures were determined using chemical and spectroscopic methods including HRFABMS, (1)H-(1)H COSY, HSQC and HMBC experiments.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors.forename: Xiao-Ya
authors.initials: XY
authors.lastname: Shang
authors.forename: Ying-Hong
authors.initials: YH
authors.lastname: Wang
authors.forename: Chong
authors.initials: C
authors.lastname: Li
authors.forename: Cheng-Zhong
authors.initials: CZ
authors.lastname: Zhang
authors.forename: Yong-Chun
authors.initials: YC
authors.lastname: Yang
authors.forename: Jian-Gong
authors.initials: JG
authors.lastname: Shi
mesh_terms: D000107:Acetylation; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D028101:Papaveraceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D044948:Flavonols; D005960:Glucosides