Using C[Mg]Br, O=CC1(c2cc(F)cc(OCc3ccccc3)c2)CCOCC1 to produce CC(O)C1(c2cc(F)cc(OCc3ccccc3)c2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.