Using CC(=O)OC(COCCN(C)C)c1ccc2cc(OCc3ccccc3)ccc2c1 to produce CC(=O)OC(COCCN(C)C)c1ccc2cc(O)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.