Using BrC1CCCC1, COC(=O)c1ccc(OC)c(O)c1[N+](=O)[O-] to produce COC(=O)c1ccc(OC)c(OC2CCCC2)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.