Using CC(C)(C)OC(=O)NCC(=O)N[C@@H]1CCN(Cc2ccc(Cl)cc2)C1 to produce NCC(=O)N[C@@H]1CCN(Cc2ccc(Cl)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.