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