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.
本发明涉及一种杀死内寄生虫的过程,特别是影响温血动物如绵羊、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式的有效量进行治疗。式I的某些化合物是新颖的,在本发明的进一步实施中提供了用于该过程的新颖化合物和组合物。这些化合物可以通过常规
化学反应轻松制备。式I的各种
吡啶酰
肼类化合物在口服和/或静脉注射后对绵羊表现出广谱驱虫活性。