Isolation and Identification of L-Isoleucyl-L-valine Anhydride from the Soy-bean Meal Hydrolysates (AMINOSAN-EKI)

Abstract

L-Isoleucyl-L-valine anhydride was synthesized from L-isoleucine and L-valine. The com-parison between the diketopiperazine derivative which had been isolated from soy-bean meal hydrolysates and the authentic sample of L-isoleucyl-L-valine anhydride showed that the both compounds were identical.