Phosphonoureide and phosphonothioureide anthelmintics

摘要

This invention relates to novel anthelmintic compounds containing an arylene or divalent heterocyclic ring whose free valences are satisfied by (1) a disubstituted phosphoryl ureido or thioureido group and (2) an amino group or a substituted amido or thioamido group, to compositions containing them, and to methods of using them for the treatment of intestinal parasites in mammals and birds.