title: Purine nucleosides. XXXI. The directive effect which certain exocyclic substituents at C-8 of adenine have on the site of ribosylation.
mesh_terms: D000225:Adenine; D055598:Chemical Phenomena; D002621:Chemistry; D003500:Cyclization; D007536:Isomerism; D009705:Nucleosides; D012263:Ribonucleosides; D013329:Structure-Activity Relationship
chemical_list: D009705:Nucleosides; D012263:Ribonucleosides; D000225:Adenine