The present invention relates to a method for producing a novel lanthionine derivative having a CaSR agonist activity, an intermediate compound of the lanthionine derivative, and use of the intermediate compound for production of a CaSR agonist, a kokumi-imparting agent, and a food and/or beverage ingredient.
phosph(on)ate amino acid phosphoramidate analogues of deoxynucleotides were synthesized as potential substrates for HIV-1 reverse transcriptase. Taurine, L-cysteic acid, 3-phosphono-L-alanine, O-sulfonato-L-serine, and O-phospho-L-serine were investigated as leaving groups in an enzyme catalyzed DNA synthesis protocol. Among these analogues, the phosphonate congener performed best and 3-phosphono-L-alanine