1 109 2-(4-carbamimidoyl-2-hydroxy-benzylamino)-propionic acid 1.000 2 S2D N-benzoyl-D-alanine 0.722 3 04Q N-benzylglycine 0.706 4 108 2-(5-carbamimidoyl-2-hydroxy-benzylamino)-propionic acid 0.700 5 DBS 2-(2,3-dihydroxy-benzoylamino)-3-hydroxy-propionic acid 0.700