Using CC(C)CBr, O=C(O)c1cccc(-n2ncc3cc(I)ccc32)c1 to produce CC(C)COC(=O)c1cccc(-n2ncc3cc(I)ccc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.