4-tert-Butoxycarbonylamino-piperidine-1-carboxylic acid (S)-1-{(R)-1-[(1S,2S)-1-cyclohexylmethyl-2-hydroxy-3-(2-oxo-2H-pyridin-1-yl)-propylcarbamoyl]-2-methylsulfanyl-ethylcarbamoyl}-2-phenyl-ethyl ester

4-tert-Butoxycarbonylamino-piperidine-1-carboxylic acid (S)-1-{(R)-1-[(1S,2R)-1-cyclohexylmethyl-2-hydroxy-3-(pyridin-2-ylsulfanyl)-propylcarbamoyl]-2-methylsulfanyl-ethylcarbamoyl}-2-phenyl-ethyl ester

4-tert-Butoxycarbonylamino-piperidine-1-carboxylic acid (S)-1-{(R)-1-[(1S,2S)-1-cyclohexylmethyl-2-hydroxy-3-(4-oxo-4H-pyridin-1-yl)-propylcarbamoyl]-2-methylsulfanyl-ethylcarbamoyl}-2-phenyl-ethyl ester

4-tert-Butoxycarbonylamino-piperidine-1-carboxylic acid (S)-1-{(R)-1-[(1S,2R)-1-cyclohexylmethyl-2-hydroxy-3-(1H-[1,2,4]triazol-3-ylsulfanyl)-propylcarbamoyl]-2-methylsulfanyl-ethylcarbamoyl}-2-phenyl-ethyl ester

(2S)-3-(4-aminophenyl)-1-(((2R)-1-(((3R)-1-cyclohexyl-3-hydroxy-4-(pyridin-4-yloxy)butan-2-yl)amino)-3-(methylthio)-1-oxopropan-2-yl)amino)-1-oxopropan-2-yl piperidine-1-carboxylate bis(2,2,2-trifluoroacetate)