4-N-Benzoyl-2'-deoxy-5'-O-(4,4'-dimethoxytrityl)cytidine
5'-O-(4-4'-dimethoxytrityl)thymidine
[1,2,4]Triazol-1-yl-phosphonic acid (2R,3S,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-furan-3-yl ester 2-chloro-phenyl ester
[1,2,4]Triazol-1-yl-phosphonic acid (2R,3S,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester 2-chloro-phenyl ester
N4-benzoyl-2'-deoxycytidine-3'-O-(2-chlorophenyl-2-cyanoethyl)phosphate