title: Nucleophilic substitutions with pyrimidine nucleoside N3 sodium salts.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D009705:Nucleosides; D011743:Pyrimidines; D012492:Salts; D012964:Sodium
chemical_list: D009705:Nucleosides; D011743:Pyrimidines; D012492:Salts; D012964:Sodium