title: [Study on the chemical constituents of Mitragyna rotundifolia].
abstract: Twelve compounds were isolated from the EtOAc-soluble and ButOH-soluble portions of the EtOH extract from the bark of Mitragyna rotundifolia. These compounds were identified by their spectral data as dauricine (1), 3,4-dihydroxybezoic acid (2), beta-sitosterol (3), scopleton (4),3,4,5-trimethyoxyphenol-1-glucopyranoside (5), taraxerol (6), 4-hydroxy-3-methyloxybenzoic acid (7), 3-hydroxy-4-methyloxybenzoic acid (8), caffeic acid (9), gambirine (10), gambireine (11),1,1-dimetheyl-2-acetl-diethyl ether (12), respectively. All compounds were isolated from this genus for the first time.
authors.affiliation: Institute of the Natural Products, Henan University, Kaifeng 475004, China.
authors.forename: Wen-yi
authors.initials: WY
authors.lastname: Kang
authors.forename: Bai-rang
authors.initials: BR
authors.lastname: Zhang
authors.forename: Qi-tai
authors.initials: QT
authors.lastname: Xu
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Xiao-jiang
authors.initials: XJ
authors.lastname: Hao
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification; D032065:Mitragyna / Q000737:chemistry*; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000470:Alkaloids; D002109:Caffeic Acids; D012855:Sitosterols; C025473:gamma-sitosterol; D009828:Oleanolic Acid; C005802:taraxerol; C040048:caffeic acid