Compounds of formula (I) are described for deterring vermin, wherein R is unbranched or branched C.sub.1-C.sub.15 alkyl, which is unsubstituted or substituted by halogen, cyano or nitro; R1 and R2 are unbranched or branched C.sub.1-C.sub.12 alkyl, preferably C.sub.1-C.sub.6 alkyl, which is unsubstituted or substituted by halogen, cyano or nitro; and X and Y, independently of one another, are a straightchain or branched alkylene bridge with 1 to 20 carbon atoms, preferably an alkylene bridge with 1 to 3 carbon atoms, which is unsubstituted or substituted by halogen, cyano or nitro. Furthermore, an essentially non-therapeutical process for deterring vermin is described, which is based on the usage of these compounds, as well as verminrepellent compositions containing these compounds as the active ingredient, and finally the use of these compounds for producing vermin-deterring compositions and their usage in deterring vermin from animals, humans and objects. New compounds within the scope of formula (I) are also described. ##STR00001##