Using Nc1ccc(O)cc1[N+](=O)[O-], O=C(CBr)c1ccccc1 to produce Nc1ccc(OCC(=O)c2ccccc2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.