1 QEG N~2~-{3-[4-(4-phenylthiophen-2-yl)phenyl]propanoyl}-L-glutaminyl-L-alpha-glutamine 1.000 2 EEG N-{3-[4-(4-phenylthiophen-2-yl)phenyl]propanoyl}-L-alpha-glutamyl-L-alpha-glutamyl-amide 0.951 3 EEA N-{3-[3-(3'-chlorobiphenyl-4-yl)isoxazol-5-yl]propanoyl}-L-alpha-glutamyl-L-alpha-glutamyl-amide 0.800 4 EEF N-(3-biphenyl-4-ylpropanoyl)-L-alpha-glutamyl-L-alpha-glutamyl-amide 0.786 5 55L (R)-4-(((S)-1-(((S)-1-amino-4-carboxy-1-oxobutan-2-yl)amino)-4-carboxy-1-oxobutan-2-yl)amino)-3-((3-(3'-chloro-[1,1'-biphenyl]-4-yl)isoxazol-5-yl)methyl)-4-oxobutanoate 0.735 6 56O N-[(2r)-2-{[3-(3'-chlorobiphenyl-4-yl)-1,2-oxazol-5-yl]methyl}-4-(hydroxyamino)-4-oxobutanoyl]-L-alpha-glutamyl-L-alpha-glutamine 0.720