Using CN(C)C(=O)C(O)c1cncc(Br)c1, O=C(OO)c1cccc(Cl)c1 to produce C[N+](C)([O-])C(=O)C(O)c1cncc(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.