Synthesis and comparison of activity of 2- and 3-dimethylsulfamidophenothiazine derivatives

An alternative synthetic route to the neuroleptic compound Pipothiazine

“…Structure 4c was assigned from spectroscopic data. Compound 4c has been synthesized previously 15,16 from substituted (2-nitrophenyl)(phenyl)sulfanes 3 by different procedures involving more steps.…”