Using CCOC(=O)C=C(c1ccccc1)n1ccc2cc(OCc3ccccc3)ccc21 to produce CCOC(=O)CC(c1ccccc1)n1ccc2cc(O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.