Using COC(=O)[C@@H]1[C@H](N=[N+]=[N-])CCN1C(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CC[C@@H](N=[N+]=[N-])[C@H]1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.