title: Chemical transformations of naturally occurring nucleosides to otherwise difficultly accessible structures.
mesh_terms: D000241:Adenosine / Q000031:analogs & derivatives; D055598:Chemical Phenomena; D002621:Chemistry; D003596:Cytosine / Q000031:analogs & derivatives; D003853:Deoxyribonucleosides; D007536:Isomerism; D009705:Nucleosides; D012263:Ribonucleosides; D013329:Structure-Activity Relationship; D014529:Uridine / Q000031:analogs & derivatives
chemical_list: D003853:Deoxyribonucleosides; D009705:Nucleosides; D012263:Ribonucleosides; D003596:Cytosine; D000241:Adenosine; D014529:Uridine