1 MM9 (2s)-N-[(4-carbamimidoylphenyl)methyl]-1-[(2r)-2-cyclohexyl-2-[[2-(dimethylamino)-2-oxidanylidene-ethyl]amino]ethanoyl]azetidine-2-carboxamide 1.000 2 M6S (2s)-N-[(4-carbamimidoylphenyl)methyl]-1-[(2r)-2-cyclohexyl-2-[[2-(methylamino)-2-oxidanylidene-ethyl]amino]ethanoyl]azetidine-2-carboxamide 0.970 3 M4Z (2s)-N-[(4-carbamimidoylphenyl)methyl]-1-[(2r)-2-cyclohexyl-2-[[2-(ethylamino)-2-oxidanylidene-ethyl]amino]ethanoyl]azetidine-2-carboxamide 0.941 4 M67 (2s)-N-(4-carbamimidoylbenzyl)-1-[(2r)-2-cyclohexyl-2-{[2-oxo-2-(propylamino)ethyl]amino}acetyl]azetidine-2-carboxamide 0.914 5 MEL [((1r)-2-{(2s)-2-[({4-[amino(imino)methyl]benzyl}amino)carbonyl]azetidinyl}-1-cyclohexyl-2-oxoethyl)amino]acetic acid 0.882 6 MVF (2s)-1-[(2r)-2-[(2-azanyl-2-oxidanylidene-ethyl)amino]-2-cyclohexyl-ethanoyl]-N-[(4-carbamimidoylphenyl)methyl]azetidine-2-carboxamide 0.882