The article discusses a study on the synthesis of new N-phosphorylmethyl amino acid derivatives. Steric structure of 2-[( S)- N-dicyclohexylphosphorylmethylamino] propanoic acid. The study heated the reactants for 3 hours in boiling acetonitrile. The IR spectra are said to be measured on a Bruker Tensor 27 spectrometer with Fourier transform from samples dispersed in mineral oil.