title: [Anhydride and halogenated-anhydride trihalogenacetic acid interaction with thymidine-5'-phosphate: ways to new activating reagents in nucleotide phosphorylation reactions].
abstract: The interaction of thymidine 5'-phosphate with trichloroacetic anhydride, trichloroacetyl chloride, and tribromoacetyl bromide was studied in dimethylformamide and acetonitrile in the presence of tertiary amines. The first two reactions gave the mixed anhydride of trichloroacetic and thymidylic acids (acyl phosphate) as the major product and P1, P2-dithymidine 5'-pyrophosphate as the byproduct. The third reaction proceeded by a more complicated mechanism and mainly led to substituted polyphosphates. The subsequent treatment of the reaction mixtures with morpholine resulted in thymidine 5'-phosphoromorpholidate in a high yield. The phosphorylating activities of the trichloroacetyl and tribromoacetyl phosphates were 77 and 89%, respectively.
authors.affiliation: Novosibirsk Institute of Bioorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia. bogachev@inboch.ru
authors.forename: V S
authors.initials: VS
authors.lastname: Bogachev
authors.forename: P A
authors.initials: PA
authors.lastname: Ulanov
mesh_terms: D000085:Acetates / Q000737:chemistry*; D000812:Anhydrides / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D006219:Halogens / Q000737:chemistry*; D007202:Indicators and Reagents / Q000737:chemistry*; D009711:Nucleotides / Q000737:chemistry*; D010766:Phosphorylation; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D000085:Acetates; D000812:Anhydrides; D006219:Halogens; D007202:Indicators and Reagents; D009711:Nucleotides