5'-O-(DIMETHOXYTRITYL)-2'-O-METHYL-5-METHYLURIDINE
5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-iodo-2'-O-methyl-uridine
5'-O-(DIMETHOXYTRITYL)-5-FLUORO-O4-(2,4,6-TRIMETHYLPHENYL)-2'-O-METHYLURIDINE
N6-(Diisobutylaminomethylidene)-5'-O- (dimethoxytrityl)-O2-(diphenylcarbamoyl)-2'- deoxyisoguanosine
N6 -(Diisobutylaminomethylidene)-O2 -(diphenylcarbamoyl)-2'- deoxyisoguanosine
N6 -(Diisobutylaminomethylidene)-2'-deoxyisoguanosine
O6-PHENYL-2'-DEOXYINOSINE
5'-O-(DIMETHOXYTRITYL)-O6-PHENYL-2'-DEOXYINOSINE
2'-DEOXY-4-DESMETHYLWYOSINE
1-(5'-O-DMT-BETA-D-2-DEOXYRIBOFURANOSYL)-5-NITROINDOLE