Using C1=COCCC1, CCOC(=O)c1cc(Cl)nc2[nH]nc(I)c12 to produce CCOC(=O)c1cc(Cl)nc2c1c(I)nn2C1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.