HCID 22768400, compound → HCID 86736039, compound

Participants

Reaction Steps

A suspension of 4 parts of 7-chloro-2-(2-enanthylhydrazino)-5-phenyl-3H-1,4-benzodiazepine prepared in Example 31 in 20 parts by volume of pyridine is refluxed for about 3 hours. After evaporation of pyridine, water is added to the residue, whereby 8-chloro-1-hexyl-6-phenyl-4H-s-triazolo [4,3-a] [1,4] benzodiazepine is yielded as crystals. Recrystallization from aqueous acetone yields colorless flakes melting at 75° C to 78° C (sintering).

Provenance & Evidence