O-((2R,3S,5R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(6-oxo-1,6-dihydro-9H-purin-9-yl)tetrahydrofuran-3-yl) 1H-imidazole-1-carbothioate

2'-O-tert-butyldimethylsilyl-5'-O-(4,4'-dimethoxytrityl)-6-N-benzoyladenosine

5'-O-dimethoxytrityladenosine

5'-O-(4,4'-Dimethoxytrityl)-N2-dimethylformamidine-2'-deoxyguanosine