Synthesis of acylamino acid esters of nucleoside 5′-phosphates and their investigation with PMR and CD spectra

Abstract
The acylemino acid esters of nucleoside 5′-phosphates are synthesized via condensation of N-(N'-acylaainoacyl)imidazoles with nucleoside 5′-phosphates. The PMR and CD spectra of the esters obtained are studied. The 3′-isomers of the substances under study are observed to have a shift in the conformational N=S equilibrium of the carbobydrate moiety in favour of the S-form as compared to the initial nucleosides and their 2′-acyl esters.