A Short Enantioselective Pathway for the Synthesis of the Anti-Influenza Neuramidase Inhibitor Oseltamivir from 1,3-Butadiene and Acrylic Acid
摘要:
A short synthetic pathway has been developed for the synthesis of oseltamivir (1) or the enantiomer (ent-1). The intermediates and conditions for this process are summarized in Scheme 1. The synthesis provides a number of advantages: (1) use of inexpensive and abundant starting materials; (2) complete enantio-, regio-, and diastereocontrol; (3) avoidance of explosive, azide-type intermediates; (4) good overall yield (ca. 30%, still not completely optimized); and (5) scalability.
Enantioselective Synthesis of Bridged- or Fused-Ring Bicyclic Ketones by a Catalytic Asymmetric Michael Addition Pathway
作者:Duan Liu、Sungwoo Hong、E. J. Corey
DOI:10.1021/ja063332y
日期:2006.6.1
Efficient methodology has been developed for the conjugate addition of ketene acetals to cyclic alpha,beta-enones. The chiral adducts allow access to fused- or bridged-ring structures such as those shown.
A Short Enantioselective Pathway for the Synthesis of the Anti-Influenza Neuramidase Inhibitor Oseltamivir from 1,3-Butadiene and Acrylic Acid
作者:Yeung、Sungwoo Hong、E. J. Corey
DOI:10.1021/ja0616433
日期:2006.5.1
A short synthetic pathway has been developed for the synthesis of oseltamivir (1) or the enantiomer (ent-1). The intermediates and conditions for this process are summarized in Scheme 1. The synthesis provides a number of advantages: (1) use of inexpensive and abundant starting materials; (2) complete enantio-, regio-, and diastereocontrol; (3) avoidance of explosive, azide-type intermediates; (4) good overall yield (ca. 30%, still not completely optimized); and (5) scalability.