Using CON(C)C(=O)c1cc(N2CCOCC2)cc(S(F)(F)(F)(F)F)c1, C[Mg]Br to produce CC(=O)c1cc(N2CCOCC2)cc(S(F)(F)(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.