Using C[Mg]Br, O=Cc1ccc(Cn2cc([N+](=O)[O-])cn2)o1 to produce CC(O)c1ccc(Cn2cc([N+](=O)[O-])cn2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.