Using COC(=O)c1c([N+](=O)[O-])cc(OC)c(OC)c1O, BrC1CCC1 to produce COC(=O)c1c([N+](=O)[O-])cc(OC)c(OC)c1OC1CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.