Using CS(=O)(=O)c1ccc(CBr)cc1, Cc1nc(Cl)nc2c1NCC1COCCN21 to produce Cc1nc(Cl)nc2c1N(Cc1ccc(S(C)(=O)=O)cc1)CC1COCCN21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.