Using [N-]=[N+]=[N-], COC(=O)[C@H]1OC(C)(C)N(C(=O)OC(C)(C)C)[C@@H]1COS(C)(=O)=O to produce COC(=O)[C@H]1OC(C)(C)N(C(=O)OC(C)(C)C)[C@@H]1CN=[N+]=[N-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.