1-[5-(tert-butyldiphenylsilyl)-2,3-dideoxy-3-C-(formyl)-β-D-erythro-pentofuranosyl]thymine

5′-O-mesyl-3′-O-tert-butyldimethylsilyl deoxythymidine

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

Thiobenzoic acid S-[(2S,3S,5R)-3-(tert-butyl-dimethyl-silanyloxy)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl] ester

1-[(2R,4S,5S)-5-(tert-Butyl-diphenyl-silanyloxymethyl)-4-(2-nitro-phenyldisulfanylmethyl)-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione