Using CON(C)C(=O)c1cccc(C(F)(F)F)c1F, Cl[Mg]CCc1ccccc1 to produce O=C(CCc1ccccc1)c1cccc(C(F)(F)F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.