Using CC(C)(C)OC(=O)CBr, O=C(Nc1cc[nH]c(=O)n1)c1ccccc1 to produce CC(C)(C)OC(=O)Cn1ccc(NC(=O)c2ccccc2)nc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.