6-N-[N-(2-nitrophenyl)carbamoyl]deoxyadenosine

1-[9-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]purin-6-yl]-3-phenylurea

2'-deoxy-5'-O-tert-butyldiphenylsilyl-2'-deoxyadenosine

5'-O-TBDMS-3'-O-TBDPS-2'-deoxyadenosine

[(2R,3S,5R)-5-(6-aminopurin-9-yl)-3-[tert-butyl(dimethyl)silyl]oxyoxolan-2-yl]methanol