Using OCCCOc1ccc(Oc2ccccc2)cc1, CCOC(=O)C(Cc1ccc(O)cc1Cl)OC to produce COC(Cc1ccc(OCCCOc2ccc(Oc3ccccc3)cc2)cc1Cl)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.