1-[5-O-(tert-butyldiphenylsilyl)-2,3-dideoxy-β-D-glycero-pentofuranosyl]thymine

3'-deoxy-5'-O-(phenoxythiocarbonyl)thymidine

3'-deoxy-5'-O-triphenylmethylthymidine

5-氟-2-硝基苯甲酸

三甲基硅烷化重氮甲烷