Using [N-]=[N+]=[N-], CC1(C)CON(Cc2cccc(N)c2Cl)C1=O to produce CC1(C)CON(Cc2cccc(N=[N+]=[N-])c2Cl)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.