(R)-2-Benzyl-N-{(S)-1-((1S,2R,3S)-1-cyclohexylmethyl-2,3-dihydroxy-5-pyridin-2-yl-pentylcarbamoyl)-2-[1-(2,4-dinitro-phenyl)-1H-imidazol-4-yl]-ethyl}-4-morpholin-4-yl-4-oxo-butyramide

N-(S-methyl-L-cysteinyl)-(2S,3R,4S)-1-cyclohexyl-3,4-dihydroxy-6-(2-pyridyl)hexan-2-amine

N--(2S,3R,4S)-1-cyclohexyl-3,4-dihydroxy-6-(2-pyridyl)hexan-2-amine

(1-{(R)-3-[(S)-1-((1S,2R,3S)-1-Cyclohexylmethyl-2,3-dihydroxy-5-pyridin-2-yl-pentylcarbamoyl)-butylcarbamoyl]-4-phenyl-butyryl}-piperidin-4-yl)-carbamic acid tert-butyl ester

(1-{(R)-3-[(R)-1-((1S,2R,3S)-1-Cyclohexylmethyl-2,3-dihydroxy-5-pyridin-2-yl-pentylcarbamoyl)-2-methylsulfanyl-ethylcarbamoyl]-4-phenyl-butyryl}-piperidin-4-yl)-carbamic acid tert-butyl ester