N-(2-Cycloheptylethyl)-3-(1H-indol-3-yl)propanamide was transformed in two synthetic steps into N-(3-(1H-indol-3-yl)propyl)-N-(2-cycloheptylethyl)butan-1-amine (η = 30 %), which was then successfully transformed into quaternary ammonium salt N-(3-(1H-indol-3-yl)propyl)-N-(2-cycloheptylethyl)-N-methylbutan-1-aminium iodide (η = 54 %). 1H-Pyrrolo[2,3-b]pyridine was transformed into 2-oxo-2-(1H-pyrrolo[2,3-b]pyridin-3-yl)acetic acid in two synthetic steps (η = 2 %). Naphthalene-1- and naphthalene-2-carbaldehyde were transformed in four synthetic steps into the corresponding tertiary amines, N-(2-cycloheptylethyl)-N-(3-(naphthalen-1-yl)propyl)butan-1-amine (η = 5 %) and N-(2-cycloheptylethyl)-N-(3-(naphthalen-2-yl)propyl)butan-1-amine (η = 2 %). Final products were tested for activity against human butyrylcholinesterase (hBChE).
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