Using C=CCBr, O=[N+]([O-])c1ccc2c(c1)N1CCNC(C2)C1 to produce C=CCN1CCN2CC1Cc1ccc([N+](=O)[O-])cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.