The aN-acetyl-a-amino acid methylamides derived from glycine, L-alanine, L-isoleucine, L- methionine, L-proline, L-hydroxyproline, L-histidine, D-and L-phenylalanine, D-and L- tyrosine and D-and L-tryptophan have been examined with respect to their ability to inhibit the o-chymotrypsin catalyzed hydrolysis uf benzoyl-L-valine methyl ester. The cytent of interaction of the enzyme with the first seven compounds was insufficient to permit ...