Using O=C1CC(=O)N(c2cccc(OCc3ccccc3)c2)c2ccc3c(c2N1)CCCC3 to produce O=C1CC(=O)N(c2cccc(O)c2)c2ccc3c(c2N1)CCCC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.