(S)-2-{3-tert-Butoxycarbonylmethyl-5-[3-(4-tert-butyl-phenoxy)-phenyl]-2-oxo-2,3-dihydro-imidazol-1-yl}-hexanoic acid methyl ester

(S)-2-{5-[3-(4-tert-Butyl-phenoxy)-phenyl]-3-carboxymethyl-2-oxo-2,3-dihydro-imidazol-1-yl}-hexanoic acid methyl ester

(S)-2-{5-[3-(4-tert-Butyl-phenoxy)-phenyl]-3-[(3,4-dichloro-benzylcarbamoyl)-methyl]-2-oxo-2,3-dihydro-imidazol-1-yl}-hexanoic acid methyl ester

(S)-2-(5-[3-(4-tert-Butyl-phenoxy)-phenyl]-3-{[2-(2-chloro-phenyl)-ethylcarbamoyl]-methyl}-2-oxo-2,3-dihydro-imidazol-1-yl)-hexanoic acid methyl ester