A new synthesis of 3′-deoxy-3′-fluoroadenosine for use as an important intermediate of antitumor-active cyclic dinucleotide is disclosed. The synthesis started with the known 5-O-TBDPS-D-lyxofuranose 1,2-acetonides, which was first transformed into a fluorinated compound after the DAST reaction. Desilylation and acidic methanolysis were then finished in one pot. After a sequence of triflation, displacement
公开了用作抗肿瘤活性环状二核苷酸的重要中间体的3'-脱氧-3'-氟腺苷的新合成。合成从已知的 5- O -TBDPS-D-呋喃来糖 1,2-丙酮化合物开始,在 DAST 反应后首先将其转化为氟化化合物。然后脱甲硅烷基化和酸性甲醇解在一锅中完成。经过一系列三氟甲磺酸化、OBz置换以及苯甲酰化,得到过苯甲酰化的3-脱氧-3-氟-D-呋喃核苷,将其转化为3'-脱氧-3'-氟腺苷,作为环状二核苷酸的关键中间体氨解后。