Diastereoselective Synthesis of (2<i>S</i>,5<i>R</i>)-5-Hydroxypipecolic Acid and 6-Substituted Derivatives
作者:Peter N. M. Botman、F. Jan Dommerholt、René de Gelder、Quirinus B. Broxterman、Hans E. Schoemaker、Floris P. J. T. Rutjes、Richard H. Blaauw
DOI:10.1021/ol047774v
日期:2004.12.1
[reaction: see text] Herein, we report a diastereoselective synthesis of the natural product (2S,5R)-5-hydroxypipecolic acid and 6-substituted derivatives thereof. The key step in the synthetic sequence is a novel highly diastereoselective epoxidation reaction of an enantiomerically pure cyclic enamide intermediate.
[反应:参见正文]在此,我们报道了天然产物(2S,5R)-5-羟基哌酸及其6-取代衍生物的非对映选择性合成。合成顺序中的关键步骤是对映体纯净的环状烯酰胺中间体的新型高度非对映选择性环氧化反应。