Previously unknown oxadiazolimidazobenzodiazepine derivatives of the formula <IMAGE> in which R<3> has the formula <IMAGE> or <IMAGE> where R' denotes hydrogen, C1-6-alkyl, C1-6-alkoxymethyl or C3-6-cycloalkyl; R<4> denotes hydrogen; R<5> denotes C1-6-alkyl, or R<4> and R<5> together form a 2-4-membered alkylene chain; and R<A> denotes C1-6-alkyl, C1-6-alkoxy or C1-3- trifluoroalkyl. These compounds are suitable for use in psychopharmaceutical preparations as anticonvulsants, anxiolytics, hypnotic agents and nootropic agents.
Oxadiazolylimidazobenzodiazepine derivatives