Using COc1cccc(C=O)c1O, O=C(CBr)c1ccc(Cl)c([N+](=O)[O-])c1 to produce COc1cccc2cc(C(=O)c3ccc(Cl)c([N+](=O)[O-])c3)oc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.