title: Synthesis of oligonucleotide derivatives with dansyl group at sugar fragment.
abstract: The method for introduction of dansyl group into the 2'-position of oligonucleotides is described. The dansyl group was introduced to 2'-position of uridine by the reaction of dansyl chloride with 2'-amino-2'-deoxyuridine, which was then converted to the 5'-dimethoxytrityl phosphorobisdiethylamidite derivative, (4). This reagent was used for the solid-phase synthesis of the oligonucleotide-dansyl conjugate, 5'-ACTCU(DNS)AGAGG. The conjugate could be purified by reversed-phase HPLC. The nucleoside composition of the conjugate was verified by the enzymatic digestion analysis.
authors.affiliation: Department of Applied Chemistry, Himeji Institute of Technology, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ohashi
authors.forename: K
authors.initials: K
authors.lastname: Yamana
authors.forename: H
authors.initials: H
authors.lastname: Nakano
authors.forename: O
authors.initials: O
authors.lastname: Sangen
mesh_terms: D001483:Base Sequence; D002241:Carbohydrates / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D003619:Dansyl Compounds / Q000737:chemistry*; D008969:Molecular Sequence Data; D015394:Molecular Structure; D009841:Oligonucleotides / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D002241:Carbohydrates; D003619:Dansyl Compounds; D009841:Oligonucleotides