Using CCCCc1oc2ccccc2c1C(=O)c1cc(I)c(OCCN(CC)CC)c(I)c1 to produce CCCCc1oc2ccccc2c1C(O)c1ccc(OCCN(CC)CC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.