3'-O-(t-butyldimethylsilyl)thymidine
(SP)-N6-benzoyl-5'-O-(4,4-dimethoxytrityl)-2'-deoxyadenoylyl-(3'->5')-N6-benzoyl-3'-O-<1,1-dimethylethyl)dimethylsilyl>thymidine 3'-methylphosphonate
(SP)-N6-benzoyl-5'-O-(4,4-dimethoxytrityl)-2'-adenoylyl-(3'->5')-3'-O-<1,1-dimethylethyl)dimethylsilyl>-thymidine 3'-H-phosphonate
(S)-Methyl-phosphonic acid (2R,3S,5R)-5-(6-benzoylamino-purin-9-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester (2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethyl ester
Triethylammonium 6-N-benzoyl-2'-deoxy-5'-O-(4,4'-dimethoxytrityl)adenosine 3'-H-phosphonate