Synonyms: NSC354057;38817-30-0;AC1LASMG;NSC 354057;2,4(1H,3H)-Pyrimidinedione, 5-bromo-1-(5-deoxy-5-fluoro-.beta.-L-ribofuranosyl)-;2,4(1H,3H)-Pyrimidinedione, 5-bromo-1-(5-deoxy-5-fluoro-beta-L-ribofuranosyl)-;5-bromo-1-[(2S,3S,4R,5R)-5-(fluoromethyl)-3,4-dihydroxyoxolan-2-yl]pyrimidine-2,4-dione