Using CC(NC(=O)OC(C)(C)C)c1ccc(Cl)cc1CN=[N+]=[N-] to produce CC(NC(=O)OC(C)(C)C)c1ccc(Cl)cc1CN, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.