Using CNC(=O)c1cc(Oc2ccc3c(N)cccc3c2)ccn1, O=C(Cl)c1cccc(Cl)c1 to produce CNC(=O)c1cc(Oc2ccc3c(NC(=O)c4cccc(Cl)c4)cccc3c2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.