Using O=C([O-])[O-], COc1ccc(C(=O)Nc2ccc(F)cc2F)c(O)c1 to produce COc1ccc(C(=O)Nc2ccc(F)cc2F)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.