Using CCOC(=O)C(Br)c1ccc(S(=O)(=O)C2CC2)cc1, Oc1ccc(F)cc1F to produce CCOC(=O)C(Oc1ccc(F)cc1F)c1ccc(S(=O)(=O)C2CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.