Nucleosides and Nucleotides. 116. Convenient Syntheses of 3-Deazaadenosine, 3-Deazaguanosine, and 3-Deazainosine via Ring Closure of 5-Ethynyl-1-β-D-ribofuranosylimidazole-4-carboxamide or -carbonitrile

Article abstract of DOI:10.1016/S0040-4020(01)86259-1

An easy chemical synthesis of 3-deazapurine nucleosides, 3-deazainosine <1-β-D-ribofuranosylimidazo<4,5-c>pyridin-4(5H)-one (8)>, 3-deazaguanosine <6-amino-1-β-D-ribofuranosylimidazo<4,5-c>pyridin-4(5H)-one (23)>, and 3-deazaadenosine <4-amino-1-β-D-ribof