Disclosed is a process for making diastereomeric compound of the formula (I): wherein m, n and R1 to R4 are as defined herein. The process of the invention provides the compound of formula (I) in high yield and substantially free of the corresponding diastereomers. The compounds of formula (I) prepared by the process of the invention are useful for making pharmaceutically active compounds such as 11- β-hydroxysteroid hydrogenase type 1 (11- β-HSD1) inhibitors.
揭示了一种制备式(I)的对映体化合物的方法:其中m、n和R1至R4如本文所定义。本发明的方法提供了式(I)化合物高产率且基本不含相应的对映异构体。通过本发明的方法制备的式(I)化合物可用于制备药用活性化合物,如11-β-羟基类
固醇脱氢酶1(11-β-H
SD1)
抑制剂。