Using COC(=O)C1Oc2ccccc2C2(CC2)c2ccc(OC)c(OC)c2O1 to produce COc1ccc2c(c1OC)OC(C(=O)O)Oc1ccccc1C21CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.