4-amino-6-(4-methoxyphenyl)-5-cyano-7-(β-L-xylofuranosyl)pyrrolo[2,3-d]pyrimidine

4-amino-6-(3-methoxyphenyl)-5-cyano-7-(β-L-xylofuranosyl)pyrrolo[2,3-d]pyrimidine

4-amino-6-(4-bromophenyl)-5-cyano-7-(β-L-xylofuranosyl)pyrrolo[2,3-d]pyrimidine

4-amino-6-(3-bromophenyl)-5-cyano-7-(β-L-xylofuranosyl)pyrrolo[2,3-d]pyrimidine

4-amino-6-(1H-pyrrol-2-yl)-5-cyano-7-(β-L-xylofuranosyl)pyrrolo[2,3-d]pyrimidine