尿嘧啶核苷

1,3-di-β-D-ribofuranosyl-1H-pyrimidine-2,4-dione

5-氟脲嘧啶

5,5-difluoro-1,3-diazinane-2,4,6-trione

5-氟-6-羟基氢尿嘧啶单水合物