2-[[(2R)-2-[[2-[(3,3-dibutyl-7-methylsulfanyl-1,1-dioxo-5-phenyl-2,4-dihydrobenzo[b][1,4]thiazepin-8-yl)oxy]acetyl]amino]-2-phenylacetyl]amino]acetic acid
2-[[(2R)-2-[[2-[(3,3-dibutyl-7-methylsulfanyl-1,1-dioxo-5-phenyl-2,4-dihydrobenzo[b][1,4]thiazepin-8-yl)oxy]acetyl]amino]-2-phenyl-acetyl]amino]acetic acid
2-[[(2R)-2-[[2-[[3,3-dibutyl-7-(methylthio)-1,1-dioxo-5-phenyl-2,4-dihydrobenzo[b][1,4]thiazepin-8-yl]oxy]-1-oxoethyl]amino]-1-oxo-2-phenylethyl]amino]acetic acid
2-[[(2R)-2-[[2-[[3,3-dibutyl-1,1-diketo-7-(methylthio)-5-phenyl-2,4-dihydrobenzo[b][1,4]thiazepin-8-yl]oxy]acetyl]amino]-2-phenyl-acetyl]amino]acetic acid
2-[[(2R)-2-[2-[(3,3-dibutyl-7-methylsulfanyl-1,1-dioxo-5-phenyl-2,4-dihydrobenzo[b][1,4]thiazepin-8-yl)oxy]ethanoylamino]-2-phenyl-ethanoyl]amino]ethanoic acid