申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0488435A1
公开(公告)日:1992-06-03
The invention relates to a method of improving the growth and the feed efficiency and of increasing the muscle/fat ratio of agricultural domestic animals, in particular bovine animals and sheep, by administering to the animals a composition which comprises as an active substance a compound of the general formula
wherein:
R₁is a phenylalkyl group the alkyl group of which comprises 1-3 carbon atoms and the phenyl group of which may be substituted with one or more substituents selected from the group consisting of hydroxy, methoxy, fluoro and methylsulphonylamino, or wherein
R₁is a thienyl alkyl group or a tetrahydrofurylalkyl group the alkyl group of which comprises 1-3 carbon atoms; or wherein
R₁is an optionally branched alkyl group having 1-8 carbon atoms which optionally is substituted with a C₁-C₄ alkoxy group, a hydroxy group, a C₁-C₄ alkoxycarbonyl group or a carboxy group; and wherein
R₂ and R₃ are each independently methyl or ethyl;
or an acid addition salt of the said compound.
The invention further relates to a composition, in particular intended as a feed additive, which comprises such a phenylalkylamino derivative as an active substance.
本发明涉及一种改善农用家畜,特别是牛和羊的生长和饲料效率以及提高肌肉/脂肪比率的方法,其方法是向动物施用一种组合物,该组合物的活性物质包括通式为以下的化合物
其中
R₁是苯基烷基,其烷基包含 1-3 个碳原子,苯基可被一个或多个选自羟基、甲氧基、氟基和甲磺酰氨基的取代基取代,或其中
R₁ 是由 1-3 个碳原子组成的噻吩基烷基或四氢呋喃基烷基;或
R₁ 是具有 1-8 个碳原子的任选支链烷基,该烷基任选被 C₁-C₄ 烷氧基、羟基、C₁-C₄ 烷氧羰基或羧基取代;且其中
R₂ 和 R₃ 各自独立地为甲基或乙基;
或上述化合物的酸加成盐。
本发明还涉及一种组合物,特别是用作饲料添加剂的组合物,其中包含作为活性物质的苯基烷基氨基衍生物。