ethyl esters of n- ( 3- and n- ( 4-amidinobenzoyl ) ( -l- ) amino acids ( namely , glycine , alanine , valine , leucine and phenylalanine ) were synthesized and their inhibitory effect on the bovine trypsin and porcine pancreatic kallikrein catalyzed hydrolysis of p-nitroanilides of amino acids was investigated , at ph 8.1 and 37 degrees , in parallel with the effect of ethyl and/or methyl esters of n-benzoyl ( -l- ) amino acids and benzamidine .
C0017890
glycine
C0002520
amino acids