Using COC(=O)c1ccccc1S(=O)(=O)Nc1ccccc1C(F)(F)F, COC(=O)CBr to produce COC(=O)CN(c1ccccc1C(F)(F)F)S(=O)(=O)c1ccccc1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.