introduction | 2,6-diazepam [3.3] heptane has aroused strong interest in the pharmaceutical industry. 2, 6-diazospirl [3.3] heptane has been reported in the 1930s and has become a hot spot in the field of organic synthesis, while 6-hydroxy-2-azospirl [3.3] heptan-2-formate tert-butyl ester is a key intermediate in the synthesis of 2, 6-diazospirl [3.3] heptane. |
application | 6-hydroxy -2-azamol [3.3] heptane -2-formate tert-butyl ester can be used as an organic synthesis intermediate and a pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process. |
preparation | taking epoxy bromide as the starting material, after ring opening, it reacts with ethyl cyanoacetate in a closed loop to produce substituted cyclobutane, and forms azasolo [3.3] heptane with p-toluenesulfonyl chloride. To facilitate separation and purification, the amine was protected by Boc anhydride. Finally, 6-hydroxy-2-azolo [3.3] heptan-2-formic acid tert-butyl ester is generated. Fig. 1 roadmap for synthesis of 6-hydroxy -2-azelo [3.3] heptane -2-formate tert-butyl ester |