1 U7J N-(2-{[(naphthalen-2-yl)methyl][2-(4-sulfamoylphenyl)ethyl]amino}-2-oxoethyl)-N-(2-phenylethyl)-beta-alanine 1.000 2 U77 N-(2-{[(furan-2-yl)methyl][2-(4-sulfamoylphenyl)ethyl]amino}-2-oxoethyl)-N-(2-phenylethyl)-beta-alanine 0.833 3 U6V N~2~-(3-aminopropyl)-N-[(4-fluorophenyl)methyl]-N~2~-(2-phenylethyl)-N-[2-(4-sulfamoylphenyl)ethyl]glycinamide 0.814 4 U7G N~2~-(3-aminopropyl)-N-[(furan-2-yl)methyl]-N~2~-(2-phenylethyl)-N-[2-(4-sulfamoylphenyl)ethyl]glycinamide 0.767