Using CCOC(=O)c1c(C(F)(F)F)c(C=O)nn1C, Br[Mg]C1CC1 to produce CCOC(=O)c1c(C(F)(F)F)c(C(O)C2CC2)nn1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.