申请人:Beecham Group p.l.c.
公开号:US04914202A1
公开(公告)日:1990-04-03
A method for inceasing the weight gain and/or improving the feed utilization efficiency and/or increasing the lean body mass and/or decreasing birth mortality rate and increasing post-natal survival rate of livestock comprises the administration to livestock of an effective, non-toxic amount of a compound of formula (I), or a veterinarily acceptable acid addition salt thereof: ##STR1## wherein R.sup.1 is phenyl (C.sub.1-6)alkyl or optionally substituted C.sub.1-6 alkyl, and W is optionally substituted phenyl, a heterocyclyl group, or phenoxymethyl optionally substituted on the phenyl group. Certain compounds of formula (I) are novel.
一种增加家畜体重增加和/或提高饲料利用效率和/或增加瘦体重和/或降低出生死亡率和增加产后存活率的方法,包括向家畜施用公式(I)的有效、无毒量的化合物或其兽医可接受的酸加成盐:##STR1## 其中R.sup.1是苯基(C.sub.1-6)烷基或可选择取代的C.sub.1-6烷基,W是可选择取代的苯基、杂环基或在苯基上可选择取代的苯氧甲基。公式(I)的某些化合物是新颖的。