Using ClC(Cl)(Cl)c1ccccc1, CCOC(=O)c1ccc(N)cc1 to produce CCOC(=O)c1ccc(N=C(Nc2ccc(C(=O)OCC)cc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.