A Simple and Stereospecfic Route to 2,6-Disubstituted 4-Hydroxypiperidines. Synthesis of Dendrobate Alkaloid (+)-241D and Formal Synthesis of (−)-Indolizidine 167B
作者:Dawei Ma、Haiying Sun
DOI:10.1021/ol006176n
日期:2000.8.1
The condensation of enantiopure beta-amino esters with beta-ketoesters followed by cyclization and decarboxylation afforded 2,3-dihydro-4-pyridones 3, which were selectively hydrogenated to provide 2,6-disubstituted 4-hydroxypiperdines.
对映体纯的β-氨基酯与β-酮酸酯的缩合,然后环化和脱羧,得到2,3-二氢-4-吡啶酮3,将其选择性氢化以提供2,6-二取代的4-羟基哌啶。