The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula AND THEIR ADDITION SALTS, IN WHICH R1 and R2 are substituents selected from the group consisting of hydrogen, alkyl having 1-5 carbon atoms, alkenyl having 2 to 4 carbon atoms, alkinyl having 2 to 4 carbon atoms or beta -bromoallyl (-CH2-CBr = CH2) ; R3 is -CN; n is an integer selected from 1 and 2; and m is an integer selected from 1, 2 and 3, wherein the rings A and B may be substituted, ring A being substituted preferably with a halogen such as chlorine or with nitro, trifluoromethyl, methyl, methoxy or methylmercapto, preferably in the 5 position, and ring B being preferably substituted in the 2' position with chlorine or fluorine. The radical R1 preferably signify hydrogen or a methyl, ethyl or propargyl group, the radicals for R2 preferably signify hydrogen or a methyl, allyl or an n-butyl group.
Cyanoalkylamino-amido benzophenones