1-acetyl-N-[2-(1,3-benzodioxol-5-yl)ethyl]-N-[(2S,3S)-3-[[2-[(3-chlorophenyl)amino]acetyl]amino]-2-hydroxy-4-phenylbutyl]piperidine-4-carboxamide
1-acetyl-N-[2-(1,3-benzodioxol-5-yl)ethyl]-N-[(2S,3S)-3-[[2-[(3-chlorophenyl)amino]acetyl]amino]-2-hydroxy-4-phenyl-butyl]piperidine-4-carboxamide
1-acetyl-N-[2-(1,3-benzodioxol-5-yl)ethyl]-N-[(2S,3S)-3-[[2-[(3-chlorophenyl)amino]-1-oxoethyl]amino]-2-hydroxy-4-phenylbutyl]-4-piperidinecarboxamide
1-acetyl-N-[2-(1,3-benzodioxol-5-yl)ethyl]-N-[(2S,3S)-3-[[2-[(3-chlorophenyl)amino]acetyl]amino]-2-hydroxy-4-phenyl-butyl]isonipecotamide
N-[2-(1,3-benzodioxol-5-yl)ethyl]-N-[(2S,3S)-3-[2-[(3-chlorophenyl)amino]ethanoylamino]-2-hydroxy-4-phenyl-butyl]-1-ethanoyl-piperidine-4-carboxamide