Abstract Reaction of 5-fluorouracil (I) with sodium chloroacetate in the presence of sodium hydride afforded a mixture of 5-fluorouracil-1-acetic acid (II) and 5-fluorouracil-3-acetic acid (III). p-Nitrophenyl 5-fluorouracil-1-acetate (IV) reacted with amines in methanol or dimethylformamide to give N-substituted 5-fluorouracil-1-acetamides V. The following amides were prepared: diethylamide Vc, n-hexylamide Vd, cyclohexylamide Ve, ...
