Using CC(C)c1cc(O)cc(C(C)C)c1, O=C(O)c1cc(Cl)ccc1Cl to produce CC(C)c1cc(Oc2ccc(Cl)cc2C(=O)O)cc(C(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.