1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-5-(methylamino)imidazole-4-carboxamide

3-methylguanosine

2,6-diamino-1-methyl-5-nitroso-4-pyrimidone

2,6-diamino-1-methyl-4-pyrimidone hemihydrochloride

5-(cyanomethylamino)-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)imidazole-4-carboxamide