Using O=c1cc[nH]c(=O)[nH]1, OC(c1ccccc1)c1ccc(Cl)cc1Cl to produce Oc1ncc(C(c2ccccc2)c2ccc(Cl)cc2Cl)c(O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.