Using O=C1CCC(=O)N1Br, Cc1ccc(S(=O)(=O)C(F)(F)F)cc1 to produce O=S(=O)(c1ccc(CBr)cc1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.