title: Chiral resolution of the enantiomers of tetrahydronaphthalenic derivatives, new agonist and antagonist ligands for melatonin receptors, using high-performance liquid chromatography on cellulose chiral stationary phases.
abstract: Analytical HPLC methods using derivatized cellulose chiral stationary phases were developed for the separation of the enantiomers of methoxy and ethyl tetrahydronaphthalenic derivatives, new agonist and antagonist ligands for melatonin receptors. The resolution were made using normal-phase methodology with a mobile phase consisting of n-hexane-alcohol (methanol, ethanol, 1-propanol or 2-propanol) in various percentage, and a silica-based cellulose tris-3,5-dimethyl-phenylcarbamate (Chiralcel OD-H), or tris-methylbenzoate (Chiralcel OJ). The mobile phase and the chiral stationary phase were varied to achieve the best resolution. The effects of concentration of alcohol, various aliphatic alcohols in the mobile phase were studied. The effects of substitution were analysed. Baseline separation (R(s) > 1.5) was easily obtained in many cases. The resolution results were complementary between the two columns.
authors.affiliation: Laboratoire de Chimie Analytique, Faculté des Sciences, Pharmaceutiques et Biologiques, Université de Lille, France.
authors.forename: C
authors.initials: C
authors.lastname: Vaccher
authors.forename: E
authors.initials: E
authors.lastname: Fourmaintraux
authors.forename: M P
authors.initials: MP
authors.lastname: Vaccher
authors.forename: C
authors.initials: C
authors.lastname: Beaubat
authors.forename: J P
authors.initials: JP
authors.lastname: Bonte
mesh_terms: D002482:Cellulose; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D008024:Ligands; D011956:Receptors, Cell Surface / Q000378:metabolism*; D018160:Receptors, Cytoplasmic and Nuclear / Q000378:metabolism*; D044094:Receptors, Melatonin; D012822:Silicon Dioxide; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism; D013764:Tetrahydronaphthalenes / Q000737:chemistry* / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D008024:Ligands; D011956:Receptors, Cell Surface; D018160:Receptors, Cytoplasmic and Nuclear; D044094:Receptors, Melatonin; D013764:Tetrahydronaphthalenes; D012822:Silicon Dioxide; D002482:Cellulose