Using COC(=O)[C@@H]1CC(N=[N+]=[N-])CN1C(=O)CCc1cccc(CNC(=O)OC(C)(C)C)c1 to produce COC(=O)[C@@H]1CC(N)CN1C(=O)CCc1cccc(CNC(=O)OC(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.