1,1-dimethylethyl (2R)-2-((1R)-1-(3'-ethyl-6-fluoro-2-biphenylyl)-1-hydroxy-4-{[(methyloxy)carbonyl]amino} butyl)-4-morpholinecarboxylate

1,1-dimethylethyl (2R)-2-[4,4-bis(methyloxy)butanoyl]-4-morpholinecarboxylate

1,1-dimethylethyl (3R)-3-[4-amino-1-(6-chloro-3'-methyl-2-biphenylyl)-1-hydroxybutyl]-1-piperidinecarboxylate

1,1-dimethylethyl (3R)-3-(1-(6-chloro-3'-methyl-2-biphenylyl)-1-hydroxy-4-{[(methyloxy)carbonyl]amino}butyl)-1-piperidinecarboxylate

1,1-dimethylethyl (2R)-2-[(1R)-1-(3'-ethyl-6-fluoro-2-biphenylyl)-1-hydroxy-4,4-bis(methyloxy)butyl]-4-morpholinecarboxylate