Using COCCl, CC(C)(C)c1ccc(S(=O)(=O)Nc2ccc(Cl)cc2Br)cc1 to produce COCN(c1ccc(Cl)cc1Br)S(=O)(=O)c1ccc(C(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.