There are produced 6-aza-1,2-dihydro-3H-1,4-benzodiazepines of the formula: R1OR2 ¦¦ N-CH ANGLE ANGLE CH-R3 I Cl¦ C=N ¦ ¦R4 wherein:
Certain 2-oxy-5-phenyl-6-aza-7-chloro-1,2-dihydro-3H-1,4-benzodiazepines