Adenosine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicoadenylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicoadenylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Uridine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicoadenylylmethylene-(2′→5′)-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Guanosine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicocytidylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Adenosine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicocytidylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Cytidine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicocytidylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Uridine, N-acetyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicocytidylylmethylene-(2′→5′)-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicouridylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicouridylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicouridylylmethylene-(2′→5′)-N-acetyl-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicouridylylmethylene-(2′→5′)-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Guanosine, N-acetyl-5′-O-[(methylthio)methyl]-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Cytidine, N-acetyl-5′-O-[(methylthio)methyl]-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Uridine, 5′-O-[(methylthio)methyl]-2′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 3′-benzoate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinico-3′-O-[7-(4-nitrophenoxy)-1,7-dioxoheptyl]uridylylmethylene-(2′→5′)-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-dephosphinico-2′-O-[7-(4-nitrophenoxy)-1,7-dioxoheptyl]uridylylmethylene-(3′→5′)-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dephosphinicouridylylmethylene-(2′→5′)-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-3′-O-dephosphinicouridylylmethylene-(3′→5′)-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate

Uridine, 5′-O-[(methylthio)methyl]-3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate

Uridine, 3′-O-[[[tris(1-methylethyl)silyl]oxy]methyl]-, 2′-benzoate