Using O=Cc1ccc(CO)cc1, Oc1c(Cl)cc(OCC=C(Cl)Cl)cc1Cl to produce O=Cc1ccc(COc2c(Cl)cc(OCC=C(Cl)Cl)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.