Abstract
A new methodology for the synthesis of protected phosphonamidate peptides from O-ethyl 1-azidoalkylphosphonic acids and amino acids esters was developed. The method is general and the corresponding N-Boc protected phosphonopeptides as well as their azido analogs have been obtained in good yields. An efficient preparation of O-ethyl 1-azidoalkylphosphonic acids is also presented.
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