Using CCN(CC)CCOc1ccc2[nH]c(-c3n[nH]c4ccc(OCc5ccccc5)cc34)cc2c1 to produce CCN(CC)CCOc1ccc2[nH]c(-c3n[nH]c4ccc(O)cc34)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.