Using C[Mg]Cl, CC(=O)Oc1cc(CC(=O)OC(C)(C)C)ccc1[N+](=O)[O-] to produce CC(=O)Oc1cc(CC(=O)OC(C)(C)C)cc(C)c1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.