Using CC(C)(O)C(=O)O, Cc1ncc(-c2nc(Nc3ccc(N4CCNCC4)cc3)ncc2Cl)n1C(C)C to produce Cc1ncc(-c2nc(Nc3ccc(N4CCN(C(=O)C(C)(C)O)CC4)cc3)ncc2Cl)n1C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.