Diamine, 4-(2-((2-cycloheptylethyl)amino)ethyl)-N,N-dimethylcyclohexan-1-amine, was prepared. It contains one secondary and one tertiary amino group. The diamine was used for the amidation of Nα-(tert-butoxycarbonyl)-Nα-butyl-D-tryptophan and 3-(1H-indol-3-yl)propanoic acid after the activation of the carboxy group with CDI. N-Boc protected tryptophan was unsuccessfully amidated with N-(2-cycloheptylethyl)-3-(1H-indol-3-yl)propan-1-amine. Subsequently, amides were reduced to amines and one of the products was further cyclized/reduced. The final products were isolated with column chromatography and fully characterized. Three branched and sp3-rich final products, containing two amino groups and an indole ring, were prepared. Products which were expected to reduce levels of butyrylcholinesterase in the brain were tested for the extent of butyrylcholinesterase inhibition. Specificity of enzyme inhibition was also examined.