title: Preparative isolation and purification of alkaloids from the Chinese medicinal herb Evodia rutaecarpa (Juss.) Benth by high-speed counter-current chromatography.
abstract: High-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water system (5:5:7:5, v/v) was applied to the isolation and purification of alkaloids from the Chinese medicinal plant Evodia rutaecarpa (Juss.) Benth. Five kinds of alkaloids were obtained and yielded 28 mg of evodiamine (I), 19 mg of rutaecarpine (II), 21 mg of evocarpine (III), 16mg of 1-methy-2-[(6Z,9Z)]-6,9-pentadecadienyl-4-(1H)-quinolone (IV), 12 mg of 1-methyl-2-dodecyl-4-(1H)-quinolone (V) from 180 mg of crude extract in a one-step separation, with the purity of 98.7%, 98.4%, 96.9%, 98.0%, 97.2%, respectively, as determined by high performance liquid chromatography (HPLC). The structures of these compounds were identified by 1H NMR and 13CNMR.
authors.affiliation: College of Chemistry and Chemical Engineering, Liaocheng University, No. 34 Wenhua Road, Liaocheng 252059, China. renminliu@lctu.edu.cn
authors.forename: Renmin
authors.initials: R
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: Chu
authors.forename: Ailing
authors.initials: A
authors.lastname: Sun
authors.forename: Lingyi
authors.initials: L
authors.lastname: Kong
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003377:Countercurrent Distribution / Q000379:methods*; D032086:Evodia / Q000737:chemistry*
chemical_list: D000470:Alkaloids