Prevention and / or treatment of parasitic diseases caused by parasites of the phylum Apicomplexa

The present invention relates to compounds belonging to the class pyranones useful in the prevention and / or treatment of coccidiosis (Eimeria infections spp.). These compounds are also useful in the prevention and / or treatment of cryptosporidiosis (infection with Cryptosporidium spp.), Toxoplasmosis (infection with Toxoplasma gondii), from neosporosis (Neospora caninum induced infections) and / or malaria (Plasmodium infections spp.).