1-(2-bromo-1-ethoxyethyl)-5-fluoropyrimidine-2,4-dione

1-(chloromethoxymethyl)-5-fluoropyrimidine-2,4-dione

N1-(Methyl 2,3-di-O-acetyl-β-D-xylofuranosyluronate)-5-fluorouracil

5-fluoro-1,3-bis(piperidin-1-ylmethyl)pyrimidine-2,4-dione

5-fluoro-1-(2-oxopropyl)pyrimidine-2,4-dione