1 45U (S)-N-(4-carbamimidoylbenzyl)-1-(2-(cyclopentyloxy)ethanoyl)pyrrolidine-2-carboxamide 1.000 2 46U (S)-N-(4-carbamimidoylbenzyl)-1-(2-(cyclohexyloxy)ethanoyl)pyrrolidine-2-carboxamide 0.897 3 24U 1-butanoyl-N-(4-carbamimidoylbenzyl)-L-prolinamide 0.724 4 29U 1-[(2r)-2-aminobutanoyl]-N-(4-carbamimidoylbenzyl)-L-prolinamide 0.700