(3'-O-Acetylthymidin-5'-O-yl)(2-cyanoethoxy)[5'-O-(4,4'-dimethoxytrityl)thymidin-3'-O-yl]phosphane

Acetic acid (2R,3S,5R)-2-{(2-cyano-ethoxy)-[(2S,3S,5R)-2-formyl-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yloxy]-phosphoryloxymethyl}-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester

2-Cyanoethyl {5'-[(E)-3-((3'R)-3-benzyloxymethyl-5'-O-tert-butyldimethylsilyl-3'-deoxythymidin-3'-yl)-2-oxopropylidene]-5'-deoxythymidin-3'-O-yl}(3'-acetylthymidin-5'-O-yl)phosphinate

P-(2-cyano-ethyl)-thymidylyl-(3'->5')-O3'-acetyl-thymidine

2-Cyanoethyl {5'-[3-((3'R)-3'-deoxythymidin-3'-yl)-2-oxopropyl]-5'-deoxythymidin-3'-yl}(3'-acetylthymidin-5'-O-yl)phosphinate