Using CI, CC(C)(C)OC(=O)NCCC1CCN(C(=O)OCc2cc(Cl)cc(Cl)c2)CC1 to produce CN(CCC1CCN(C(=O)OCc2cc(Cl)cc(Cl)c2)CC1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.