(R)-2-Amino-N-[5-(4-chloro-phenyl)-3,3-dimethyl-1,1-dioxo-2,3-dihydro-1H-1λ6-isothiazol-4-ylmethyl]-N-ethyl-3-(2,3,5-trifluoro-benzyloxy)-propionamide

(R)-2-Amino-3-(2-chloro-3,6-difluoro-benzyloxy)-N-[5-(4-chloro-phenyl)-3,3-dimethyl-1,1-dioxo-2,3-dihydro-1H-1λ6-isothiazol-4-ylmethyl]-N-ethyl-propionamide

[1-((R)-2-Benzyloxy-1-{[5-(4-chloro-phenyl)-3,3-dimethyl-1,1-dioxo-2,3-dihydro-1H-1λ6-isothiazol-4-ylmethyl]-ethyl-carbamoyl}-ethylcarbamoyl)-1-methyl-ethyl]-carbamic acid tert-butyl ester