Imidazopyridine derivatives are of great importance because of their remarkable biological properties. They are of chemical and pharmacological interest due to their isosterism with indoles and azaindoles, two im-portant heterocycles involved in many alkaloids. Some of them have been used as herbicides, fungicides, pesticides, medicines and dyes. The imidazopyridines comprise four isomers: imidazo[1,2-a]- pyridine, imidazo[1,5-a]pyridine, imidazo[4,5-b]pyridine, and imidazo[4,5-c]pyridine. This paper reviews the advances in the synthesis of imidazopyridine derivatives during the past ten years.

Key words: imidazopyridine derivative, heterocyclic compound, synthesis