(2Xi)-3',5'-二-O-乙酰基-2'-溴-2'-脱氧-3,4-二氢胸苷

3-脱氧-5-o-(二甲氧基三苯甲游基)-5-甲基尿苷

5’-苯甲酰基-2’,3’-二脱氢-3’-脱氧胸腺嘧啶

5-methyl-1-[(2R,4R)-4-(trityloxymethyl)-3,6-dioxabicyclo[3.1.0]hexan-2-yl]pyrimidine-2,4-dione

1-[(2R,3R,4R,5R)-3-azido-4-hydroxy-5-(trityloxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione