title: Electrophilic addition to 5-substituted-6,2'-O-cyclouridines.
abstract: Halogenation of 5-substituted-6,2'-O-cyclouridines afforded 6,2':6,5'-dianhydro-5,6-dihydro-6, 6-dihydroxy-5-halo-5-substituted-uracil arabinosides. Their steric configurations and mass spectra were also discussed.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D007202:Indicators and Reagents; D013058:Mass Spectrometry; D008968:Molecular Conformation; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014529:Uridine / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D007202:Indicators and Reagents; D014529:Uridine