Development of a Two-Step, Enantioselective Synthesis of an Amino Alcohol Drug Candidate

Autor: Rossano Lucius T, Michael A. Schmidt, Vu Chi Truc, Jacob Albrecht, Andrew G. Lee, Xinhua Qian, Ehrlic Lo, Steven L. Goldberg, Emily A. Reiff, Jaan A. Pesti, Chao Hang, Kenneth J. Natalie, Animesh Goswami, Zhiwei Guo, Chenchi Wang
Rok vydání: 2015
Předmět:
Zdroj: Organic Process Research & Development. 19:1317-1322
ISSN: 1520-586X
1083-6160
Popis: The process development and large scale synthesis for the β-hydroxyamino amide 1 is described. The route evolved from a multistep sequence utilizing a classical resolution to a two-step enantioselective process involving an enzyme-catalyzed aldol reaction and a direct amidation of a carboxylic acid. By utilizing a silicon-mediated direct amidation strategy, the route was devoid of protecting and deprotecting steps while retaining the stereochemical integrity of a highly sensitive β-hydroxyamino acid. The two-step strategy employed herein significantly improved the yield, process greenness, cycle time, and estimated cost in the production of 1.
Databáze: OpenAIRE