title: Chemical constituents from Dendrobium densiflorum.
abstract: 5-[2'-(3"-Hydroxy-5"-methoxyphenyl)-ethyl]-1,3-benzodioxole and 7-hydroxy-2-methoxy-1,4-phenanthrenedione, along with 16 known compounds were identified from the stems of Dendrobium densifiorum Lindl. ex Wall. (Orchidaceae). The structure of a previously reported compound dendroflorin obtained from the plant was revised on the basis of spectroscopic analysis. Among the identified compounds, five were found to exhibit anti-platelet aggregation activity in vitro.
authors.affiliation: Department of Phytochemistry, Shanghai Institute of Materia Medica, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, People's Republic of China.
authors.forename: C
authors.initials: C
authors.lastname: Fan
authors.forename: W
authors.initials: W
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: G
authors.initials: G
authors.lastname: Qin
authors.forename: W
authors.initials: W
authors.lastname: Zhao
mesh_terms: D000818:Animals; D004149:Dioxoles / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D010616:Phenanthrenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D010975:Platelet Aggregation Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D051381:Rats; D017207:Rats, Sprague-Dawley; D013057:Spectrum Analysis
chemical_list: C436835:5-(2'-(3''-Hydroxy-5''-methoxyphenyl)-ethyl)-1,3-benzodioxole; C436838:7-hydroxy-2-methoxy-1,4-phenanthrenedione; D004149:Dioxoles; D004365:Drugs, Chinese Herbal; D010616:Phenanthrenes; D010975:Platelet Aggregation Inhibitors