title: Alkaloids from Gelsemium elegans.
abstract: Three new alkaloids, gelsebanine (1), 14alpha-hydroxyelegansamine (2), and 14alpha-hydroxygelsamydine (3), and a new extraction artifact , gelsebamine (4), together with 12 known alkaloids, were isolated from the stems and leaves of Gelsemium elegans. The structures of 1-4 were determined by spectroscopic methods, especially 2D NMR techniques. Compounds 1-4 were evaluated for cytotoxic activity against four tumor cell lines, and gelsebamine (4) selectively inhibited the A-549 human lung adenocarcinoma cell line.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, People's Republic of China.
authors.forename: You-Kai
authors.initials: YK
authors.lastname: Xu
authors.forename: Sheng-Ping
authors.initials: SP
authors.lastname: Yang
authors.forename: Shang-Gao
authors.initials: SG
authors.lastname: Liao
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Lin
authors.forename: Jian
authors.initials: J
authors.lastname: Ding
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Yue
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D031450:Gelsemium / Q000737:chemistry*; D006801:Humans; D026121:Indole Alkaloids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C514406:14alpha-hydroxyelegansamine; C514407:14alpha-hydroxygelsamydine; D000972:Antineoplastic Agents, Phytogenic; D004365:Drugs, Chinese Herbal; D026121:Indole Alkaloids; C514405:gelsebanine