Using [NH4+], CCOC(=O)c1onc(-c2ccc(S(C)(=O)=O)cc2)c1N to produce CS(=O)(=O)c1ccc(-c2noc(C(N)=O)c2N)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.