Using C[Mg]I, O=C/C(F)=C/[C@@H]1C[C@H]1c1ccc(Cl)c(Cl)c1 to produce CC(O)/C=C\[C@@H]1C[C@H]1c1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.