The invention provides a new convergent approach for the synthesis of 2′-fluoro-6′-methylene-carbocyclic adenosine (FMCA) from a readily available starting material (Vince lactam) in fourteen steps. An efficient and practical methodology for stereospecific preparation of a versatile carbocyclic key intermediate, D-2′-fluoro-6′-methylene cyclopentanol by diazotization, elimination, stereoselective epoxidation, fluorination and oxidative reduction of the Vince lactam in twelve steps is also provided.
这项发明提供了一种新的汇聚方法,用于从易得的起始物(Vince内酯)经过十四个步骤合成2'-
氟-6'-亚甲基-碳环
腺苷(
FMCA)。同时还提供了一种高效实用的方法,通过十二个步骤的重氮化、消除、立体选择性环氧化、
氟化和氧化还原,对Vince内酯进行立体特异性制备多功能碳环键中间体D-2'-
氟-6'-亚甲基
环戊醇。