Cystamine derivatives of the formula: ##STR1## [wherein n represents 2 or 3, R.sup.1 and R.sup.2 each represents a hydrogen atom, or an alkyl group optionally substituted by a hydroxy, amino, alkylamino or dialkylamino group, or represents a cycloalkyl or aryl group, and X.sup.1 represents a group selected from the formulae .dbd.N--CN, .dbd.N--NO.sub.2, .dbd.N--COR.sup.3, .dbd.N--COOR.sup.3, .dbd.N--NH--CONH.sub.2, .dbd.N--SO.sub.2 R.sup.3, .dbd.CH--NO.sub.2, .dbd.CH--SO.sub.2 R.sup.3, .dbd.C(CN).sub.2, .dbd.C(CN)COOR.sup.3 and .dbd.C(CN)CONH.sub.2 (wherein R.sup.3 represents an alkyl or aryl group), or R.sup.1 represents a hydrogen atom, R.sup.2 represents an alkyl group optionally substituted by a hydroxy, amino, alkylamino or dialkylamino group, or represents a cycloalkyl or aryl group and X.sup.1 represents an oxygen or sulphur atom] have been found to be useful in the promotion of the growth of non-human animals including birds. Prcesses for the preparation of the cystamine derivatives and compositions containing them for administration to non-human animals are described.
公式为:##STR1## 的半
胱胺衍
生物 [其中n代表2或3,R.sup.1和R.sup.2分别代表氢原子,或者由羟基、
氨基、烷基
氨基或二烷基
氨基取代的烷基基团,或代表环烷基或芳基团,X.sup.1代表从以下式中选择的基团 .dbd.N--CN, .dbd.N--NO.sub.2, .dbd.N--COR.sup.3, .dbd.N--COOR.sup.3, .dbd.N--NH--CONH.sub.2, .dbd.N--SO.sub.2 R.sup.3, .dbd.CH--NO.sub.2, .dbd.CH--SO.sub.2 R.sup.3, .dbd.C(CN).sub.2, .dbd.C(CN)COOR.sup.3 和 .dbd.C(CN)CONH.sub.2 (其中R.sup.3代表烷基或芳基团),或者R.sup.1代表氢原子,R.sup.2代表由羟基、
氨基、烷基
氨基或二烷基
氨基取代的烷基基团,或代表环烷基或芳基团,X.sup.1代表氧或
硫原子] 已被发现对促进包括鸟类在内的非人类动物的生长有用。描述了制备半
胱胺衍
生物的过程以及含有它们的用于给非人类动物服用的组合物。