title: A new megastigmane glucoside and a new amide alkaloid from the leaves of Clausena lansium (Lour.) Skeels.
abstract: A new megastigmane glucoside (6S,7E,9S)-6,9,10-trihydroxy-4,7-megastigmadien-3-one 9-O-β-d-glucopyranoside (1) and a new amide alkaloid (E)-N-(4-methoxyphenethyl)-2-methylbut-2-enamide (2), together with three known amide alkaloids (3-5), were isolated from the leaves of Clausena lansium (Lour.) Skeels. Their structures were elucidated by their physicochemical properties and analysis of their spectral data.
authors.affiliation: The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education and Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhao
authors.forename: Jing-Zhi
authors.initials: JZ
authors.lastname: Yang
authors.forename: Chuang-Jun
authors.initials: CJ
authors.lastname: Li
authors.forename: Nai-Hong
authors.initials: NH
authors.lastname: Chen
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Zhang
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D000577:Amides / Q000737:chemistry / Q000302:isolation & purification*; D054700:Clausena / Q000737:chemistry*; D003512:Cyclohexanones / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D045792:Norisoprenoids / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry
chemical_list: C558751:(6S,7E,9S)-6,9,10-trihydroxy-4,7-megastigmadien-3-one 9-O-beta-D-glucopyranoside; C558750:(E)-N-(4-methoxyphenethyl)-2-methylbut-2-enamide; D000470:Alkaloids; D000577:Amides; D003512:Cyclohexanones; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D045792:Norisoprenoids