Using CC(=O)O[C@H]1[C@@H]2[C@H](CC[C@]3(C)C(=O)CC[C@@H]23)[C@@]2(C)C=CC(=O)C=C2[C@@H]1Br, [N-]=[N+]=[N-] to produce C[C@]12C=CC(=O)C(N=[N+]=[N-])=C1C=C[C@@H]1[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.