Using O=S(=O)(c1ccccc1)n1ccc2cccnc21, NC(=O)CCC(=O)NBr to produce O=S(=O)(c1ccccc1)n1cc(Br)c2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.