Cyanohydrin synthesis, as the simplest preparative method for introducing a carboxyl group into a piperidine molecule, has been used to obtain potentially biologically active piperidinecarboxylic acids, which have alkyl and arylalkyl radicals at the nitrogen atom of the piperidine ring. Hydrochlorides of cyclopropanecarboxylic acid esters based on piperidinecarboxylic acids, as well as hydrochlorides of fluorobenzoic acid esters of N-substituted piperidines, have been synthesized. The purpose of this study was to search for antiviral drugs among new piperidine derivatives.
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