A novel chiral oxazolidine organocatalyst for the synthesis of an oseltamivir intermediate using a highly enantioselective Diels–Alder reaction of 1,2-dihydropyridine
作者:Hiroto Nakano、Kenichi Osone、Mitsuhiro Takeshita、Eunsang Kwon、Chigusa Seki、Haruo Matsuyama、Nobuhiro Takano、Yoshihito Kohari
DOI:10.1039/c0cc00110d
日期:——
Enantioselective DielsâAlder reactions of 1,2-dihydropyridines with acroleins using a novel chiral oxazolidine organocatalyst afforded chiral isoquinuclidines that is an efficient synthetic intermediate of oseltamivir, with fairly good chemical yield and excellent enantioselectivity (90%, up to >99% ee).
使用一种新型手性噁唑啉有机催化剂,通过1,2-二氢吡啶与丙烯醛的对映选择性Diels-Alder反应,合成了作为奥司他韦高效合成中间体的对映选择性异喹啉化合物,具有相当好的化学产率和极高的对映选择性(90%,高达>99% 对映体过量)。