Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-octadecyl-

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-hexadecyluridine

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-tetradecyl-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-dodecyl-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-decyl-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-octyl-

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-hexyl-

Uridine, 2′-O-octadecyl-

2′-O-Hexadecyluridine

Uridine, 2′-O-dodecyl-

Uridine, 2′-O-decyl-

Uridine, 2′-O-octyl-

2′-O-Hexyluridine

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(dimethylamino)methylene]-2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-

Guanosine, N-[(dimethylamino)methylene]-2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-

Guanosine, 2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-

Guanosine, 2′-O-(6-aminohexyl)-

Guanosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-, 3′-[2-cyanoethyl N,N-bis(1-methylethyl)phosphoramidite]

Cytidine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[6-[(2,2,2-trifluoroacetyl)amino]hexyl]-