The synthesis of ribose and of adenine nucleotides containing oxygen-18.
D000227:Adenine Nucleotides / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D006601:Hexoses; D009705:Nucleosides; D010084:Oxidation-Reduction; D010103:Oxygen Isotopes; D010429:Pentoses; D012266:Ribose / Q000138:chemical synthesis*
D000227:Adenine Nucleotides; D006601:Hexoses; D009705:Nucleosides; D010103:Oxygen Isotopes; D010429:Pentoses; D012266:Ribose