Carbamoyloxyamino-1,4-benzodiazepines of formula I or II [R1 = halogen, nitro or trifluoromethtyl; R2 = phenyl, pyridyl mono/di- substd. by C1-4 alkyl, C1-4 alkoxy, hydroxy, halogen or trifluoromethyl; R3 = hydrogen, C1-4 alkyl, monoalkylcarbamoyloxy or dialkylcarbamoyloxy; R4 = phenyl optionally mono/di-substd. by halogen, nitro, cyano, trifluoromethyl, C1-4 alkyl or alkoxy, C1-4 dialkylamino were prepd. by reaction of 2-hydroxyamino-3H- 1,4benzodiazepin compds. with phenyl isocyanate compds. The title compds. have an anxiolytic action without sedating.
PROCESS FOR PREPARING CARBAMOYLAMINO-1,4-BENZODIAZEPINES