Using C[Mg]Br, O=Cc1ccc(OCc2ccc(F)c(F)c2)c(C(=O)Nc2cccnc2)c1 to produce CC(O)c1ccc(OCc2ccc(F)c(F)c2)c(C(=O)Nc2cccnc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.