(2S,4R)-methyl 4-(2-((1R,3R)-1-acetoxy-3-(tert-butoxycarbonylamino)-4-methylpentyl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate

(R)-benzyl 2-((2S,3S)-1-((1R,3R)-1-acetoxy-1-(4-((2R,4S)-5-methoxy-4-methyl-5-oxo-1-phenylpentan-2-ylcarbamoyl)thiazol-2-yl)-4-methylpentan-3-ylamino)-3-methyl-1-oxopentan-2-ylcarbamoyl)piperidine-1-carboxylate

methyl (2S,4R)-4-(2-((1R,3R)-1-acetoxy-4-methyl-3-((2S,3S)-3-methyl-2-((R)-piperidine-2-carboxamido)pentanamido)pentyl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate

(2S,4R)-methyl 4-((tert-butoxycarbonyl)amino)-2-methyl-5-phenylpentanoate

methyl (2S,4R)-4-{[(2-{(1R,3R)-3-[(tert-butoxycarbonyl)amino]-1-hydroxy-4-methylpentyl}-1,3-thiazol-4-yl)carbonyl]amino}-2-methyl-5-phenylpentanoate