Using COc1cc2c3c(n(C)c(=O)c2cc1OC)-c1cc2c(cc1C3=CCCCBr)OCO2, [I-] to produce COc1cc2c3c(n(C)c(=O)c2cc1OC)-c1cc2c(cc1C3=CCCCI)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.