Using O=Cc1ccc(Cl)cc1Cl, c1ccc(Oc2cnc3[nH]ccc3c2)cc1 to produce OC(c1ccc(Cl)cc1Cl)c1c[nH]c2ncc(Oc3ccccc3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.