2-[[(2S)-2-[[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethylpiperidin-1-yl]methyl]-3-phenylpropanoyl]amino]acetic acid 2-[[(2S)-2-[[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidyl]methyl]-3-phenyl-propanoyl]amino]acetic acid 2-[[(2S)-2-[[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidinyl]methyl]-1-oxo-3-phenylpropyl]amino]acetic acid 2-[[(2S)-2-(benzyl)-3-[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidyl]propanoyl]amino]acetic acid 2-[[(2S)-2-[[(3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-piperidin-1-yl]methyl]-3-phenyl-propanoyl]amino]ethanoic acid Alvimopan anhydrous Glycine, N-((2S)-2-(((3R,4R)-4-(3-hydroxyphenyl)-3,4-dimethyl-1-piperidinyl)methyl)-1-oxo-3-phenylpropyl)- LY246736