Using CCCCc1nc(Cl)c2[nH]cc(I)c2n1, ClCOCc1ccccc1 to produce CCCCc1nc(Cl)c2c(n1)c(I)cn2COCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.