Using O=C1CNC(=O)N1Cc1ccc([N+](=O)[O-])cc1, BrCc1ccccc1 to produce O=C1CN(Cc2ccccc2)C(=O)N1Cc1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.