申请人:Beecham Group Limited
公开号:US04321271A1
公开(公告)日:1982-03-23
Compounds of formula (I) ##STR1## wherein: R.sup.1 is C.sub.1-6 alkyl or C.sub.5-7 cycloalkyl; R.sup.2 is hydrogen or C.sub.1-6 alkyl; or NR.sup.1 R.sup.2 represents a heterocyclic ring having 5 to 7 ring atoms and only one hetero-atom; and R.sup.3 is C.sub.1-4 alkyl, one carbon atom of which is di- or tri-halogenated or salts thereof are useful in promoting growth of ruminants. Processes for their production, veterinary formulations and treatments are described.
化学式为(I)的化合物:##STR1## 其中:R.sup.1是C.sub.1-6烷基或C.sub.5-7环烷基;R.sup.2是氢或C.sub.1-6烷基;或NR.sup.1R.sup.2代表一个具有5到7个环原子和仅有一个杂原子的杂环;R.sup.3是C.sub.1-4烷基,其中一个碳原子是二卤代或三卤代的,或其盐在促进反刍动物生长方面是有用的。描述了它们的生产过程、兽医制剂和治疗方法。