(E)-5-Amino-5-methyl-hex-2-enoic acid ((R)-1-{[(R)-1-((R)-2-hydroxy-propylcarbamoyl)-2-phenyl-ethyl]-methyl-carbamoyl}-2-naphthalen-2-yl-ethyl)-methyl-amide
(E)-5-Amino-5-methyl-hex-2-enoic acid ((R)-1-{[(R)-1-((S)-2-hydroxy-propylcarbamoyl)-2-phenyl-ethyl]-methyl-carbamoyl}-2-naphthalen-2-yl-ethyl)-methyl-amide
{(E)-4-[((R)-1-{[(R)-1-((R)-2-Hydroxy-propylcarbamoyl)-2-phenyl-ethyl]-methyl-carbamoyl}-2-naphthalen-2-yl-ethyl)-methyl-carbamoyl]-1,1-dimethyl-but-3-enyl}-carbamic acid tert-butyl ester
{(E)-4-[((R)-1-{[(R)-1-((S)-2-Hydroxy-propylcarbamoyl)-2-phenyl-ethyl]-methyl-carbamoyl}-2-naphthalen-2-yl-ethyl)-methyl-carbamoyl]-1,1-dimethyl-but-3-enyl}-carbamic acid tert-butyl ester
{(E)-4-[((R)-2-Biphenyl-4-yl-1-{[(R)-2-(4-fluoro-phenyl)-1-((R)-2-hydroxy-propylcarbamoyl)-ethyl]-methyl-carbamoyl}-ethyl)-methyl-carbamoyl]-1,1-dimethyl-but-3-enyl}-carbamic acid tert-butyl ester