| 摘要 |
Disclosed is: a novel, simple and low-cost method for preparing 3-hydroxy-4-(2,4,5-trifluorophenyl)-butyric acid, particularly (3S)-3-hydroxy-4-(2,4,5-trifluorophenyl)-butyric acid, which is used as a key intermediate in the preparation of sitagliptin. |
