1-[(4S,5R)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-4-(3-hydroxy-propyl)-4-trimethylsilanyloxy-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

1-[(4S,5R)-4-Allyl-5-(tert-butyl-dimethyl-silanyloxymethyl)-4-trimethylsilanyloxy-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

1-[3,5-Di-O-benzyl-3-C-(3-hydroxypropyl)-β-D-ribofuranosyl]thymine

3',5'-di-O-benzyl-3'-C-[3-(phthalimido)propyl]thymidine

1-{3,5-di-O-benzyl-3-C-[3-(phthalimido)propyl]-β-D-ribofuranosyl}thymine