Using COc1ccc(S(=O)(=O)N2CCc3cc(Br)cc(N)c32)cc1 to produce COc1ccc(S(=O)(=O)N2CCc3cccc(N)c32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.