Using COc1cc(-c2ccc(-c3nc4cc([N+](=O)[O-])ccc4o3)cc2)cc(OC)c1OC to produce COc1cc(-c2ccc(-c3nc4cc(N)ccc4o3)cc2)cc(OC)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.