Using COC(=O)/C=C/c1ccc2cc(OC)ccc2c1-c1ccc(OC)cc1 to produce COc1ccc(-c2c(/C=C/C(=O)O)ccc3cc(OC)ccc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.