Using Cc1ccc(S(=O)(=O)NC(C)(C)C)c(F)c1, O=C1CCC(=O)N1Br to produce CC(C)(C)NS(=O)(=O)c1ccc(CBr)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.