Using O=C([O-])[O-], COC(=O)c1ccc(CNS(C)(=O)=O)cc1 to produce COC(=O)c1ccc(CN(C)S(C)(=O)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.