Using O=C(O)C1CCC1, CC(C)N(CCN)C1(Cc2cccc(Cl)c2)C(=O)Nc2cc(Cl)ccc21 to produce CC(C)N(CCNC(=O)C1CCC1)C1(Cc2cccc(Cl)c2)C(=O)Nc2cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.