Using COc1cc(F)c2c(c1)C1(CCOC(NC(=O)c3ccc([N+](=O)[O-])cc3)=N1)c1cc(Br)ccc1O2 to produce COc1cc(F)c2c(c1)C1(CCOC(N)=N1)c1cc(Br)ccc1O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.