(S)-2-[1-(4-Carbamimidoyl-benzyl)-2-morpholin-4-yl-2-oxo-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester; hydriodide

(S)-2-[1-Butylcarbamoyl-2-(4-methylsulfanylcarbonimidoyl-phenyl)-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester; hydriodide

(S)-2-[1-(4-Methylsulfanylcarbonimidoyl-benzyl)-2-oxo-2-piperidin-1-yl-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester; hydriodide

(S)-2-[1-(4-Methylsulfanylcarbonimidoyl-benzyl)-2-morpholin-4-yl-2-oxo-ethylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester; hydriodide

methyl L-prolyl-D-phenylalaninate