Using Cc1cc2ccn(S(=O)(=O)c3ccccc3)c2cc1Br, O=C1CCC(=O)N1Br to produce O=S(=O)(c1ccccc1)n1ccc2cc(CBr)c(Br)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.