Using CCOC(=O)C1C(N=[N+]=[N-])C(=O)N1c1ccc(OC)cc1 to produce CCOC(=O)C1C(N)C(=O)N1c1ccc(OC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.