A Synthesis of a Spirocyclic Macrocyclic Protease Inhibitor for the Treatment of Hepatitis C
Organic Letters(2016)
摘要
The development of a convergent and highly stereoselective synthesis of an HCV NS3/4a protease inhibitor possessing a unique spirocyclic and macrocyclic architecture is described. A late-stage spirocyclization strategy both enabled rapid structure–activity relationship studies in the drug discovery phase and simultaneously served as the basis for the large scale drug candidate preparation for clinical use. Also reported is the discovery of a novel InCl3-catalyzed carbonyl reduction with household aluminum foil or zinc powder as the terminal reductant.
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关键词
spirocyclic macrocyclic protease inhibitor,protease inhibitor,synthesis
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