The trifluoromethanesulfonyloxy (TfO) analogues 3 and 4 of 8-chloro-11-(4-methyl-1- piperazinyl)-5 H-dibenzo [b, e][1, 4] diazepine (clozapine, 1) and its 2-chloro isomer (iso- clozapine, 2), respectively, were synthesized via their OMe and OH analogues with the conventional synthetic method of the tricyclic dibenzodiazepines and evaluated pharmacologically along with their parent drugs. The binding profile of the 2-OTf analogue ...