Substrate Directed Highly Diastereoselective Synthesis of Eliglustat: A Drug for Gaucher Disease

Abstract A highly diastereoselective total synthesis of Eliglustat has been accomplished starting from a readily available D‐serine. This novel route involves a four‐step telescoped process to afford the keto intermediate ( 4 ) in 74% overall yield. The diastereoselective reduction of 4 using sodium borohydride provides the alcohol, a key intermediate 5 , with excellent selectivity (>99 dr) and yield (95%). The total synthesis of Eliglustat from D‐serine has been accomplished in ten steps with an overall yield of 21%. This process not only gives a desirable yield but also avoids the use of hazardous conditions.