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Abstract
A series of dipeptides derived from 2-pyridyl- and 3-pyridylmethyl-phosphonic diphenyl esters were synthesized. These dipeptides were obtained in the reaction of the diphenyl 2-pyridylmethyl(amino) phos-phonate or diphenyl 3-pyridylmethyl-(amino)phosphonate with the corresponding Z-blocked aminoacids (alanine, valine, and proline) by the DCC coupling method.