To sum up, and looking for new multipotent ChE/MAO inhibitors for AD, and concerning our effort to improve the pharmacological results with ASS234 (2) [22], we can conclude that donepezil-like indole derivative 15, bearing the N(1)Me/N(H)propargylamine
structural motif, is a very potent and selective EeAChE and hMAO A inhibitor showing also a non-negligible eqBuChE and hMAO B activities, comparing very favorably with hybrid ASS234 (2) regarding the EeAChE and MAO A inhibition, but showing a poorer eqBuChE and MAO B inhibition profile than ASS234 (2).