Ma D, Sun H
State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China.
Org Lett. 2000 Aug 10;2(16):2503-5. doi: 10.1021/ol006176n.
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-酮酯缩合,接着进行环化和脱羧反应,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。