Using C=CCBr, COc1ccc(C(=O)Nc2cc3c(cc2[N+](=O)[O-])NC(=O)C3(C)C)cc1 to produce C=CCN1C(=O)C(C)(C)c2cc3[nH]c(-c4ccc(OC)cc4)nc3cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.