Using COC(=O)C1c2ccc(OC)cc2C2CCCCC2C1c1ccc(OC)cc1 to produce COc1ccc(C2C(C(=O)O)c3ccc(OC)cc3C3CCCCC32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.