(S)-2-(4-benzoyl-3-((ethoxycarbonyl)amino)-2-oxo-2,3-dihydro-1H-imidazol-1-yl)propanoic acid

ethyl (5-benzoyl-3-(4-methoxyphenyl)-2-oxo-2,3-dihydro-1H-imidazol-1-yl)carbamate

ethyl (5-benzoyl-3-(4-nitrophenyl)-2-oxo-2,3-dihydro-1H-imidazol-1-yl)carbamate

ethyl (5-benzoyl-3-(4-bromophenyl)-2-oxo-2,3-dihydro-1H-imidazol-1-yl)carbamate

diethyl (3,3'-(1,2-phenylene)bis(5-benzoyl-2-oxo-2,3-dihydro-1H-imidazole-3,1-diyl))dicarbamate