Using C=C1CCC1, CC(C)(C)OC(=O)c1cc(Br)cc(/C=N/O)c1 to produce CC(C)(C)OC(=O)c1cc(Br)cc(C2=NOC3(CCC3)C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.