Using CS(=O)(=O)NCCOc1cc(Cl)cc(Cl)c1, CCOC(=O)CCCCCCBr to produce CCOC(=O)CCCCCCN(CCOc1cc(Cl)cc(Cl)c1)S(C)(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.