1-(p-nitrobenzyloxycarbonyl)-5-fluorouracil

5-氟-1-(5-氟-3,4-二羟基-5-甲基四氢呋喃-2-基)嘧啶-2,4-二酮

乙酰基次氟酸酯

6-Butoxy-5-fluoro-dihydro-pyrimidine-2,4-dione