((2S,4S,5R)-5-(2-oxo-4-pivalamidopyrimidin-1(2H)-yl)-4-(tosyloxy)tetrahydrofuran-2-yl)methyl pivalate

N4-benzoyl-2',3'-dideoxy-5'-O-tritylcytidine

2-脱氧-b-D-吡喃核糖

Acetic acid (2S,5R)-5-(2-oxo-4-[1,2,4]triazol-1-yl-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester

2’,3’-二脱氧尿苷