Using [I-], COC(=O)Cc1c(C)nc2cc(-c3cccc(Br)c3)nn2c1Cl to produce COC(=O)Cc1c(C)nc2cc(-c3cccc(Br)c3)nn2c1I, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.