title: [Syntheses of diazepine derivatives. (1). Syntheses of 2-chloro-11H-pyrimido-[4,5-b][1,4]benzodiazepin-6(5H)-one derivatives (author's transl)].
mesh_terms: D001569:Benzodiazepines / Q000138:chemical synthesis*; D003500:Cyclization; D011743:Pyrimidines
chemical_list: D011743:Pyrimidines; D001569:Benzodiazepines