4-N-(4-ethoxyphenyl)amino-5-phenyl-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine

4-N-(4-cyanophenyl)amino-5-iodo-7-(2',3'-O-isopropylidene-β-D-erythro-furanosyl)pyrrolo[2,3-d]pyrimidine