title: Cytotoxic constituents of Viscum coloratum.
abstract: Phytochemical studies on Viscum coloratum have resulted in the isolation of nineteen compounds. The structures of the isolated compounds were identified on the basis of 1D, 2D NMR and HR-ESI-Q-TOF-MS. Pachypodol (4) and ombuine (6) were characterized in the family Loranthaceae for the first time. 1,7-Bis(4-hydroxyphenyl)-1,4-heptadien-3-one (8) and 5-hydroxy-3,7,3'-trimethoxyflavone-4'-O-beta-D-glucoside (13) were two new natural compounds, which exhibited cytotoxic activities against four human tumour cell lines (HeLa, SGC-7901, MCF-7, and U251).
authors.affiliation: Department of Pharmaceutical Analysis, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
authors.forename: Yun L
authors.initials: YL
authors.lastname: Zhao
authors.forename: Xin Y
authors.initials: XY
authors.lastname: Wang
authors.forename: Li X
authors.initials: LX
authors.lastname: Sun
authors.forename: Rong H
authors.initials: RH
authors.lastname: Fan
authors.forename: Kai S
authors.initials: KS
authors.lastname: Bi
authors.forename: Zhi G
authors.initials: ZG
authors.lastname: Yu
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006367:HeLa Cells; D006801:Humans; D020128:Inhibitory Concentration 50; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization; D028181:Viscum / Q000737:chemistry*
chemical_list: D000972:Antineoplastic Agents, Phytogenic