Using CC(C)(C)NC(=O)CN1C(=O)c2cc(Br)ccc2NC1c1cccc(Cl)c1 to produce CC(C)(C)NC(=O)Cn1c(-c2cccc(Cl)c2)nc2ccc(Br)cc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.