Using [N-]=[N+]=[N-], COc1cc(Nc2c(C#N)cnc3cc(Cl)c([N+](=O)[O-])cc23)cc(OC)c1OC to produce COc1cc(Nc2c(C#N)cnc3cc(N=[N+]=[N-])c([N+](=O)[O-])cc23)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.