Using CNNC, Cc1cc([N+](=O)[O-])cc2c(=O)oc(-c3cc(Br)nn3-c3ncccc3Cl)nc12 to produce CNN(C)C(=O)c1cc([N+](=O)[O-])cc(C)c1NC(=O)c1cc(Br)nn1-c1ncccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.