Using O=S(=O)(Cl)CC(F)(F)F, CC(NCc1cccnc1)c1ccc(Br)cc1 to produce CC(c1ccc(Br)cc1)N(Cc1cccnc1)S(=O)(=O)CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.