Using COc1cc(/C=C/C(=O)[O-])ccc1O, O=[N+]([O-])OCCCCBr to produce COc1cc(/C=C/C(=O)OCCCCO[N+](=O)[O-])ccc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.