Using CC(C)(C)OC(=O)CBr, CCOC(=O)c1c[nH]c(=O)cc1Nc1ccc(I)cc1F to produce CCOC(=O)c1cn(CC(=O)OC(C)(C)C)c(=O)cc1Nc1ccc(I)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.