How is N-(2-Chlorophenyl)-6-(4-piperidinyl)imidazo[1,2-a]pyridine-3-carboxamide ethanedioate (CAS: 342595-05-5) typically synthesized?

N-(2-Chlorophenyl)-6-(4-piperidinyl)imidazo[1,2-a]pyridine-3-carboxamide ethanedioate is usually synthesized through a multi-step process involving the condensation of an intermediate imidazole derivative with 2-chloro-phenyl piperidine, followed by the formation of the ethanedioate ester. Key reagents include piperidine, chlorophenyl derivatives, and ethanedioic acid. The reaction is typically carried out under mild conditions, with good selectivity and moderate to high yield.