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A new method for the synthesis of tertiary and quaternary aminoesters of N-substituted α,β-dehydroamino acids is described. Aseries of 16 dehydroamino acids esterified to choline or to its tertiary analog have been synthesized by the proposed method with a yield of 84–93%, and their interactions with human erythrocyte acetylcholinesterase (ACE) and human plasma butyrylcholinesterase (BCE) has been...