Using CC(C)(C)OC(=O)N1CC2(CNC2)C1, O=C=NCc1ccc(Cl)cc1Cl to produce CC(C)(C)OC(=O)N1CC2(CN(C(=O)NCc3ccc(Cl)cc3Cl)C2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.