Using CS(=O)(=O)Cl, CCOC(=O)C(C)c1ccc2nc(N)sc2c1 to produce CCOC(=O)C(C)c1ccc2nc(NS(C)(=O)=O)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.