Using CN(C=O)c1ccc2c(c1)[nH]c1cc(OCc3ccccc3)ccc12 to produce CN(C=O)c1ccc2c(c1)[nH]c1cc(O)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.