Using CC(C)(C)OC(=O)N1C[C@@H](Br)C[C@@H]1C(=O)OCc1ccccc1, [N-]=[N+]=[N-] to produce CC(C)(C)OC(=O)N1C[C@H](N=[N+]=[N-])C[C@@H]1C(=O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.