A concise diastereoselective approach to (+)-dexoxadrol, (−)-epi-dexoxadrol, (−)-conhydrine and (+)-lentiginosine from (−)-pipecolinic acid
作者:Chinmay Bhat、Santosh G. Tilve
DOI:10.1016/j.tet.2013.10.082
日期:2013.12
A new diastereoselective pathway for the total synthesis of (+)-dexoxadrol, first asymmetric synthesis of (−)-epi-dexoxadrol and formal synthesis of conhydrine and (+)-lentiginosine is presented using commercially available (−)-pipecolinic acid. The key reactions utilized are Sharpless asymmetric dihydroxylation and Wittig reaction. The paper further describes the study of effect of protecting groups
使用市售的(-)-哌啉酸,提出了一种新的非对映选择性途径,用于全合成(+)-右氧杂醇,(-)-表-右氧杂戊醇的首次不对称合成以及Conhydroine和(+)-lentiginosine的形式合成。使用的关键反应是Sharpless不对称二羟基化反应和Wittig反应。该论文进一步描述了保护基对哌啶环系统中末端烯烃的二羟基化作用的研究。