Abstract

The N,N′-bis(methoxycarbonylmethyl)diamides of the corresponding acids were obtained by the reaction of glycine methyl ester hydrochloride with oxalic, succinic, adipic, diglycolic, and triglycolic acid dichlorides. Fourteen new macrocyclic tetraamides were obtained by the reaction of these diamides with various diamines. The structures of the synthesized compounds were proved by means of their IR, PMR, and mass spectra.

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