Using BrCc1ccccc1, O=C(O)c1ccc(S(=O)(=O)NCc2ccco2)cc1 to produce O=C(O)c1ccc(S(=O)(=O)N(Cc2ccccc2)Cc2ccco2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.