3'-deoxy-3'-C-(iodomethyl)thymidine

3'-deoxy-3'-C-(iodomethyl)-5'-O-(4-methoxytrityl)thymidine

3'-deoxy-3'-C-[[(2-cyanoethoxy)phosphinyl]methyl]-5'-O-(4-methoxytrityl)thymidine

1-((2R,4R,5S)-4-Ethynyl-5-hydroxymethyl-tetrahydro-furan-2-yl)-5-methyl-1H-pyrimidine-2,4-dione

[(2S,3S,5R)-2-(tert-Butyl-diphenyl-silanyloxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-ylmethyl]-phosphinic acid