Imino 1,2,3,4-tetrahydrocyclopent[b]indole carbamates as dual inhibitors of acetylcholinesterase and monoamine oxidase

A series of imino 1,2,3,4-tetrahydrocyclopent[b]indole carbamates was prepared and evaluated as dual acetylcholinesterase (AChE) and monoamine oxidase (MAO) inhibitors. Halogen substitution ortho to the carbamate functionality in the eight position resulted in a significant increase in binding affinity for both AChE and MAO-A.