N4-甲基胞苷

1-甲基-5-硝基尿嘧啶

2',3',5'-tri-O-acetyl-3-nitrouridine

2’,3’-O-异亚丙基-5-氯尿苷

(3aξ,3bξ)-4-(tri-O-acetyl-β-D-ribofuranosyl)-(3ar,3br',7ac',7bc)-tetrahydro-[1,3]dioxolo[4',5':3,4]cyclobuta[1,2-d]pyrimidine-2,5,7-trione