Synthesis of some 5-phenylhexahydroazepino[4,5-b]indoles as potential neuroleptic agents

5-Phenyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (3a) and five derivatives have been prepared and screened for neuroleptic activity. None of the compounds antagonized methamphetamine aggregate toxicity in mice. A number of compounds, including 3a and its 3-methyl derivative 3d, showed activity in the antidepressant screens.