Organocatalytic Michael Addition of Aldehydes to Protected 2-Amino-1-Nitroethenes: The Practical Syntheses of Oseltamivir (Tamiflu) and Substituted 3-Aminopyrrolidines
作者:Shaolin Zhu、Shouyun Yu、You Wang、Dawei Ma
DOI:10.1002/anie.201001644
日期:2010.6.21
Hey Mickey, you're so fine! Organocatalytic Michael additions of aldehydes with protected 2‐amino‐1‐nitroethene could go through three different transition‐states to afford adducts with usual and unusual stereochemistry, thereby providing a facile entry to Tamiflu (see scheme) and substituted 3‐aminopyrrolidines. TMS=trimethylsilyl, Ac=acetyl.