[(2S,5R)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)-2,5-dihydrofuran-2-yl]methyl 2,2-dimethylpropanoate

5'-O-t-butyl-dimethylsilyl-3'-O-methanesulfonyl-thymidine

5-O-(tert-butyldiphenylsilyl)-3-deoxy-2-Se-phenyl-2-seleno-D-threo-pentonic acid γ-lactone

Methanesulfonic acid (2R,3S,5S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester

O,O′-二(三甲基甲硅烷基)胸苷