A regioselective reductive cleavage of benzylidene acetal: stereoselective synthesis of N-Boc-protected cis-(2R,3S)-3-hydroxy pipecolic acid
作者:Ponminor Senthil Kumar、Sundarababu Baskaran
DOI:10.1016/j.tetlet.2009.03.007
日期:2009.7
A stereoselective synthesis of N-Boc-protected cis-(2R,3S)-3-hydroxy pipecolic acid, starting from d-glucose is described. The key step in the overall synthesis is a highly regioselective reductive cleavage of benzylidene acetal 13 leading to hydroxymethyl piperidine derivative 14.
描述了从d-葡萄糖开始的N -Boc保护的顺式-(2 R,3 S)-3-羟基胡椒酸的立体选择性合成。整个合成过程中的关键步骤是亚苄基乙缩醛13的高度区域选择性还原性裂解,生成羟甲基哌啶衍生物14。