title: [Chemical constituents from Parthenocissus quinquefolia].
abstract: The chemical constituents of Parthenocissus quinque were investigated. The chemical constituents were isolated by column chromatography on silical gel and sephadex LH-20. Their structures were elucidated on the basis of spectral analysis and of comparison of physical constant. Nine compounds were isolated from this plant and the structures of them were identified as 3,4,5-trihydroxy- benzoic acid (1), piceatannol (2), resveratrol (3), resveratrol trans-dehydrodimer (4), cyphoste mmin B (5), pallidol (6), cyphostemmin A (7), quercetin-3-O-alpha-L-rhamnoside (8), myricetin-3-O-alpha-L-rhamnoside (9), respectively. Compounds 1, 4-9 were isolated from this plant for the first time.
authors.affiliation: Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, BeiJing 100050, China.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Yang
authors.forename: Aiguo
authors.initials: A
authors.lastname: Wang
authors.forename: Tengfei
authors.initials: T
authors.lastname: Ji
authors.forename: Yalun
authors.initials: Y
authors.lastname: Su
mesh_terms: D010936:Plant Extracts / Q000032:analysis* / Q000302:isolation & purification; D027844:Vitaceae / Q000737:chemistry*
chemical_list: D010936:Plant Extracts