Using CC(=O)c1ccn(Cc2nc(N(C(=O)OC(C)(C)C)C(=O)c3nc(C4CC4)sc3-c3ccccc3)co2)n1 to produce CC(=O)c1ccn(Cc2nc(NC(=O)c3nc(C4CC4)sc3-c3ccccc3)co2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.