title: Synthesis of imidazo (4,5-b)pyrazine nucleosides.
mesh_terms: D007093:Imidazoles / Q000138:chemical synthesis*; D008722:Methods; D009705:Nucleosides / Q000138:chemical synthesis*; D010084:Oxidation-Reduction; D011719:Pyrazines / Q000138:chemical synthesis
chemical_list: D007093:Imidazoles; D009705:Nucleosides; D011719:Pyrazines