¢2-¢(NITROPYRIDINYL)AMINO!PHENYL! ARYLMETHANONES IN A PROCESS FOR PREPARING PYRIDO¢1,4!BENZODIAZEPINES ¢2-¢(Nitropyridinyl)amino!phenyl!arylmethanones as chemical intermediate and/or having antidepressant activity having the formula: < IMG > wherein; B is carbonyl, thioxomethyl, ketal or thioketal, R is hydrogen or -alk1-Q, Q is hydrogen, -NR1R2 or halogen are disclosed in a process for preparing pyrido¢1,4! benzodiazepines.
[2-[(NITROPYRIDINYL) AMINO] PHENYL] ARYLMETHANONES IN A PROCESS FOR PREPARING PYRIDO [1,4] BENZODIAZEPINES