Novel synthesis of the pharmacologically important 1‐substituted‐6‐phenyl‐4H‐s‐triazolo[4,3‐a][1,4]benzodiazepines

Several 6‐phenyl‐4 H ‐ s ‐triazolo[4,3‐ a ][1,4]benzodiazepines have useful biological activity both in experimental animals and in man. This manuscript describes a novel synthesis of these compounds from intermediates that do not have a pre‐formed benzodiazepine ring system.