1-(1-acetyl-2-tert-butoxycarbonylhydrazino)-1,5-dideoxy-2,3-di-O-isopropylidene-4-O-methylsulfonyl-D-ribitol

4-chloro-5-iodo-7-(5-deoxy-2,3-O-isopropylidene-β-D-ribofuranosyl)pyrrolo[2,3-d]pyrimidine

4-N-(4-fluorophenyl)amino-5-iodo-7-(5-deoxy-2,3-O-isopropylidene-β-D-ribofuranosyl)pyrrolo[2,3-d]pyrimidine

(4-Fluoro-phenyl)-[5-phenyl-7-((3aR,4R,6R,6aR)-2,2,6-trimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl]-amine