ID;SMILES;Affinity for ?IIb?3,IC50 (nM);Anti-aggregation activity,IC50 (nM) 4a;[Cl-].CCCCS(=O)(=O)N[C@@H](CNC(=O)CCNC(=O)c1ccc2CC[NH2+]Cc2c1)C(O)=O;62.0 ± 9.0;320 ± 50.0 4b;[Cl-].CCCCS(=O)(=O)N[C@H](CNC(=O)CCNC(=O)c1ccc2CC[NH2+]Cc2c1)C(O)=O;79.0 ± 12.0;670 ± 100.0 4c;[Cl-].OC(=O)[C@H](CNC(=O)CCNC(=O)c1ccc2CC[NH2+]Cc2c1)NS(=O)(=O)c1ccccc1;0.22 ± 0.01;6.2 ± 0.9 4d;[Cl-].OC(=O)[C@@H](CNC(=O)CCNC(=O)c1ccc2CC[NH2+]Cc2c1)NS(=O)(=O)c1ccccc1;0.96 ± 0.07;25.0 ± 5.0 12a;[Cl-].[Cl-].[NH3+]CCC(=O)Nc1ccc2nc([nH]c(=O)c2c1)N1CC[NH2+]CC1;5.0 ± 0.8;150 ± 25 12b;[Cl-].[Cl-].[NH3+]CCCC(=O)Nc1ccc2nc([nH]c(=O)c2c1)N1CC[NH2+]CC1;2.2 ± 0.3;11 ± 1 12c;[Cl-].[Cl-].O=C(Nc1ccc2nc([nH]c(=O)c2c1)N1CC[NH2+]CC1)C1CC[NH2+]CC1;3.8 ± 0.4;100 ± 15 Tirofiban;CCCCS(=O)(=O)N[C@@H](Cc1ccc(OCCCCC2CCNCC2)cc1)C(O)=O;2.4 ± 0.4;32 ± 4