202207-09-8Relevant articles and documents
Synthesis of structurally related purines: Benzimidazo[1,2-a]pyridines, benzimidazo-[1,2-c]pyrimidines, and pyrazolo-[1,5-a]pyrimidines
Elgemeie, Galal H.,Metwally, Nadia H.
, p. 779 - 785 (2007/10/03)
Reactions of sodium salts of 3-hydroxymethylene-2-alkanones with 2-cyanomethylbenzimidazole afforded benzimidazo[1,2-a]pyridines. Analogues reactions with 2-aminobenzimidazole and 5-aminopyrazoles afforded benzimidazo[1,2-c]pyrimidines and pyrazolo[1-5-a]pyrimidines.