Synthesis and SAR of 2-(4-fluorophenyl)-3-pyrimidin-4-ylimidazo[1,2-a]pyridine derivatives as anticoccidial agents

Compounds 10a–10d and 10i are very potent inhibitors of Eimeria tenella cGMP-dependent protein kinase (0.081–0.32 nM) and are very efficacious antiparasitic agents in vivo when administered to chickens at 12.5–25 ppm levels in the feed.

Graphical abstractThe imidazopyridine derivatives are discovered as potent inhibitors of the Eimeria tenella cGMP-dependent protein kinase.Figure optionsDownload full-size imageDownload as PowerPoint slide