This invention concerns a process for killing internal parasites, especially nematodes and cestodes affecting warm blooded animals such as sheep, cattle, swine, goats, dogs, cats, horses and humans as well as poultry by administering an effective amount of a compound of the Formula I: ##STR1## Certain of the compounds of Formula I are novel and in further embodiments of the invention provide novel compounds and compositions for use in the process of the invention. The compounds are readily prepared by conventional chemical reactions. Various pyridinyl acylhydrazones of Formula I demonstrate broad-spectrum anthelmintic activity in sheep upon oral and/or parenteral administration.
这项发明涉及一种用于杀灭内部寄生虫的过程,特别是影响温血动物(如羊、牛、猪、山羊、狗、猫、马和人类以及家禽)的线虫和绦虫,通过给予化合物I的有效量来实现:##STR1## 公式I的某些化合物是新颖的,并在该发明的进一步实施中提供了用于该发明过程的新型化合物和组合物。这些化合物可通过常规
化学反应轻松制备。公式I的各种
吡啶基酰
肼酮在羊体内经口和/或皮下给药显示出广谱驱虫活性。