to find a possible explanation for the selective hepatic conjugation of bile acids with glycine or taurine , the n-acyl amidates of cholic acid and a number of amino acids and amino acid analogues were synthesized , and their susceptibility to hydrolysis by pancreatic juice , gastric juice , serum , or small intestinal mucosal enzymes was measured .
C0017890
glycine
C0002520
amino acid