title: Column selection and method development for the separation of nucleoside phosphotriester diastereoisomers, new potential anti-viral drugs. Application to cellular extract analysis.
abstract: Analytical HPLC methods using derivatized cellulose and amylose chiral stationary phases used in normal and reversed-phase modes were developed for the diastereoisomeric separation of mononucleotide prodrugs (pronucleotides) of 3'-azido-2',3'-dideoxythymidine (AZT). The resolutions were performed with two silica-based celluloses using normal and reversed-phase methodologies: Tris-3,5-dimethylphenylcarbamate (Chiralcel OD-H and Chiracel OD-RH) and Tris-methylbenzoate (Chiralcel OJ and OJ-R). Two amyloses phases, Tris-3,5-dimethylphenylcarbamate (Chiralpak AD) and Tris-(S)-1-phenylethylcarbamate (Chiralpak AS), were used in normal-phase mode. Additionally, we developed separation using two stationary phases with immobilized cyclodextrins in reversed-phase and polar-organic modes. The mobile phase and the chiral stationary phase were varied to achieve the best resolution. Different types and concentration of aliphatic alcohols, acetonitrile or water in the mobile phase were also tested for the different separation modes. An optimal baseline separation (Rs > 1.5) was readily obtained with all silica-based celluloses and amyloses using a normal-phase methodology. The different columns gave complementary results in term of resolution. Limits of detection and quantification were 0.12-0.20 and 0.40-0.67 microm, respectively. This analytical method was applied in a preliminary study for the pronucleotide 2 quantification in cellular extract.
authors.affiliation: Laboratoire de Chimie Analytique, Faculté des Sciences Pharmaceutiques et Biologiques, Université de Lilie 2,1 BP 83,1 3 rue du Pr. Laguesse, 59006 Lille Cedex, France. jfgoosse@pharma, univ-lille2.fr
authors.forename: J F
authors.initials: JF
authors.lastname: Goossens
authors.forename: C
authors.initials: C
authors.lastname: Foulon
authors.forename: A-L
authors.initials: AL
authors.lastname: Villard
authors.forename: J-Y
authors.initials: JY
authors.lastname: Puy
authors.forename: I
authors.initials: I
authors.lastname: Lefebvre
authors.forename: C
authors.initials: C
authors.lastname: Perigaud
authors.forename: C
authors.initials: C
authors.lastname: Vaccher
authors.forename: J P
authors.initials: JP
authors.lastname: Bonte
mesh_terms: D000688:Amylose / Q000031:analogs & derivatives; D001565:Benzoates; D002219:Carbamates; D045744:Cell Line, Tumor; D002482:Cellulose / Q000031:analogs & derivatives; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation* / Q000379:methods; D054306:Dideoxynucleotides; D006801:Humans; D008214:Lymphocytes / Q000737:chemistry / Q000378:metabolism; D009711:Nucleotides / Q000302:isolation & purification*; D010755:Organophosphates / Q000302:isolation & purification; D048448:Phenylcarbamates; D011355:Prodrugs / Q000302:isolation & purification*; D012680:Sensitivity and Specificity; D013237:Stereoisomerism; D015215:Zidovudine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D047392:beta-Cyclodextrins
chemical_list: D001565:Benzoates; D002219:Carbamates; D054306:Dideoxynucleotides; D009711:Nucleotides; D010755:Organophosphates; D048448:Phenylcarbamates; D011355:Prodrugs; D047392:beta-Cyclodextrins; C445088:chiralpak AS; C504684:hydroxy tBuSATE phenylphosphotriester AZT derivative; C090722:tris(4-methylbenzoate)cellulose; C065943:cellulose tris-3,5-dimethylphenyl-carbamate; C080033:Chiralpak AD; D015215:Zidovudine; C074782:phenylphosphate; D002482:Cellulose; D000688:Amylose; C031215:betadex