5’-O-（4,4’-二甲氧基三苯甲基）-2’-O-叔丁基二甲基硅基尿苷

2’,3’-O-异亚丙基-5-氯尿苷

1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-(dimethylamino)pyrimidin-2-one

1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-morpholin-4-ylpyrimidin-2-one

4-anilino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one