Using CCCc1nc2c(C)ccnc2[nH]1, O=[N+]([O-])c1ccccc1-c1ccc(CBr)cc1 to produce CCCc1nc2c(C)ccnc2n1Cc1ccc(-c2ccccc2[N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.