Using CN, COC(=O)c1cccc(S(=O)(=O)n2cc(C=O)cc2-c2ccccc2)c1 to produce CNCc1cc(-c2ccccc2)n(S(=O)(=O)c2cccc(C(=O)OC)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.