N2-iso-Butyroyl-5'-O-(4,4'-dimethoxytrityl)-3'-O-Methyl guanosine is a Nucleoside Derivative - 3'-Modified nucleoside; Protected nucleoside w NH2 OH open.
2-Amino-4-chloro-5-iodo-N2-pivaloyl-7-[2-deoxy-3,5-di-O- (4-methylbenzoyl)-b-D-ribofuanosyl]-7H-pyrrolo[2,3-d]pyrimidine is a Nucleoside Derivative - 7-Deazapurine nucleoside; Halo-nucleoside.