Using COc1ccc(N)c(C(=O)NCCN2CCC(Oc3ccc(Cl)c(Cl)c3)CC2)c1, O=C(Cl)Cl to produce COc1ccc2[nH]c(=O)n(CCN3CCC(Oc4ccc(Cl)c(Cl)c4)CC3)c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.