title: Halogenation of 6-O-cyclouracil nucleosides.
abstract: Bromination or iodination at the 5-position of 6-O-cyclo-uracil nucleosides was effected in a fairly good yield. Besides monohalogenated nucleosides, there were prepared novel dibromo compounds, which were assigned the structure, 5,5-di-bromo-6,6-di-O-cyclouracil nucleosides (VI, VIII).
mesh_terms: D007202:Indicators and Reagents; D008722:Methods; D011741:Pyrimidine Nucleosides / Q000138:chemical synthesis; D013329:Structure-Activity Relationship; D014529:Uridine / Q000031:analogs & derivatives* / Q000138:chemical synthesis
chemical_list: D007202:Indicators and Reagents; D011741:Pyrimidine Nucleosides; D014529:Uridine