Using O=C(OCC(Cl)(Cl)Cl)C1C2CCN1CC(=NN(c1ccccc1)c1ccccc1)C2 to produce c1ccc(N(N=C2CC3CCN(C2)C3)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.