Using C[O-], Nc1cc(-c2c(Cl)cccc2Cl)nc(Cl)c1[N+](=O)[O-] to produce COc1nc(-c2c(Cl)cccc2Cl)cc(N)c1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.