NC77820
Uridine, N-benzoyl-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(4-methoxyphenyl)diphenylmethyl]-P-(2,2,2-trichloroethyl)cytidylyl-(3′→5′)-N-benzoyl-2′-O-[(1,1-dimethylethyl)dimethylsilyl]-P-(2,2,2-trichloroethyl)adenylyl-(3′→5′)-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-