Using [N-]=[N+]=[N-], CCCC[C@H]1O[C@@H]1C(=O)N[C@@H](Cc1ccccc1)C(=O)OC to produce CCCC[C@H](N=[N+]=[N-])[C@H](O)C(=O)N[C@@H](Cc1ccccc1)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.