1,3-二(苄氧基甲基)-5-氟尿嘧啶

6-chloro-5-fluoro-1H-pyrimidine-2,4-dione

methyl 5-fluoro-4-methoxy-2,6-dioxo-1,3-diazinane-5-carboxylate

(5-fluoro-2,6-dioxo-1,3-diazinan-4-yl) acetate

5-fluoro-6-methoxy-5,6-dihydrouracil