Using CON(C)C(=O)[C@H](C)NC(=O)[O-], FC(F)(F)c1ccc([Mg]Br)cc1 to produce C[C@H](NC(=O)OC(C)(C)C)C(=O)c1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.