保护胸苷

3`,5`-O-bis(4,4`-dimethoxy trityl)thymidine

benzoic acid 5-(4-benzoylamino-5-methyl-2-oxo-2H-pyrimidin-1-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester

5-O-(二甲氧基三苯甲基)-1,2-二脱氧-D-核糖

5’-O-[双(4-甲氧基苯基)苯基甲基]-2’-脱氧肌苷