Using COC(=O)[C@H]1C[C@H](N=[N+]=[N-])CCN1C(=O)OC(C)(C)C to produce COC(=O)[C@H]1C[C@H](N)CCN1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.