title: Stilbene derivatives from Gnetum cleistostachyum.
abstract: Three new stilbene derivatives, named gnetucleistol A (1), B (2) and C (3), together with four known compounds, gnetifolin A (4), p-hydroxycinnamic acid (5), piceatannol (6) and resveratrol (7), were isolated from Gnetum cleistostachyum C.Y. Cheng (Gnetaceae). Their structures were elucidated on the basis of spectroscopic evidence (EI-MS, UV, IR, NOE, 1H, 13C and 2D NMR).
authors.affiliation: Institute of Material Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.
authors.forename: Chun-Suo
authors.initials: CS
authors.lastname: Yao
authors.forename: Mao
authors.initials: M
authors.lastname: Lin
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.forename: Ying-Hong
authors.initials: YH
authors.lastname: Wang
mesh_terms: D002850:Chromatography, Gel; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D035684:Gnetum / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009904:Optical Rotation; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D013267:Stilbenes