Using CCOC(=O)CBr, O=C(Nc1nc(=O)[nH]cc1I)c1ccccc1 to produce CCOC(=O)Cn1cc(I)c(NC(=O)c2ccccc2)nc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.