Disclosed herein are methods for preparing steroids and Vitamin D derivatives having the unnatural beta (usually S) configuration at C20, the methods comprising the use of compounds of the formula:
wherein R is as defined herein. Also disclosed are steroids and Vitamin D derivatives made using the methods disclosed herein and pharmaceutical compositions comprising said steroids and Vitamin D derivatives.
本文披露了一种制备具有不寻常的β(通常为S)构型的C20处的类
固醇和
维生素D衍
生物的方法,该方法包括使用以下式的化合物:其中R如本文所定义。还披露了使用本文披露的方法制备的类
固醇和
维生素D衍
生物,以及包含该类
固醇和
维生素D衍
生物的药物组合物。