Using CN(C(=O)CNC(=O)C(C)(C)C)c1ccccc1C(=O)/C=C/c1ccc(Cl)c(Cl)c1 to produce CN1C(=O)CN=C(C=Cc2ccc(Cl)c(Cl)c2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.