“…In most cases, benzodiazepines include a 7-membered ring, an additional benzene ring and an electron attracting group at position 7 of the fused heterocyclic rings to ensure biological activity. 38 Along these lines, benzodiazepines are commonly sub-categorised according to the functional group attached to the 7-membered ring, which may include keto, hydroxyl, imidazo or triazolo groups. The three NPS in Fig.…”