Abstract A new, short synthetic route to 2-fluoroestradiol from 19-nortestosterone is described which gives the target compound in an approximately 25% overall yield. Oxidative defluorination of 2-fluoroestradiol to 2-hydroxyestradiol via treatment with Frémy's salt/iodide ion is reported. This process is regarded as biomimetic with respect to cytochrome P-450- dependent oxidative defluorination.
![(1aR,3R,4aR,4bS,6aS,7S,9aS,9bR,11aR)-3-fluoro-7-hydroxy-6a-methyltetradecahydrocyclopenta[7,8]phenanthro[1,10a-b]oxiren-2(1aH)-one结构式](https://image.chemsrc.com/caspic/277/125363-77-1.png)
