Using CC(C)(C)c1n[nH]cc1C=O, CNC(=O)c1c(NC(=O)CBr)sc2c1CCCC2 to produce CNC(=O)c1c(NC(=O)Cn2cc(C=O)c(C(C)(C)C)n2)sc2c1CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.