Using CCC[Mg]Br, O=C(NC(CC1CCCCC1)C(O)C(F)(F)C(=O)O)OCc1ccccc1 to produce CCCC(=O)C(F)(F)C(O)C(CC1CCCCC1)NC(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.