Using CCOC(=O)c1nc(Cl)c2ccccc2n1, Fc1ccc([Mg]Br)cc1F to produce O=C(c1ccc(F)c(F)c1)c1nc(Cl)c2ccccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.