Using COC(=O)C[C@@H]1C[C@@H](O)CN1C(=O)OC(C)(C)C, [N-]=[N+]=NP(=O)(c1ccccc1)c1ccccc1 to produce COC(=O)C[C@@H]1C[C@H](N=[N+]=[N-])CN1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.