Enantioselective Synthesis of α‐Secondary and α‐Tertiary Piperazin‐2‐ones and Piperazines by Catalytic Asymmetric Allylic Alkylation
作者:Katerina M. Korch、Christian Eidamshaus、Douglas C. Behenna、Sangkil Nam、David Horne、Brian M. Stoltz
DOI:10.1002/anie.201408609
日期:2015.1.2
The asymmetric palladium‐catalyzed decarboxylative allylic alkylation of differentially N‐protected piperazin‐2‐ones allows the synthesis of a variety of highly enantioenriched tertiary piperazine‐2‐ones. Deprotection and reduction affords the corresponding tertiary piperazines, which can be employed for the synthesis of medicinally important analogues. The introduction of these chiral tertiary piperazines
N保护的哌嗪-2-酮的不对称钯催化的脱羧烯丙基烷基化反应可合成多种高度对映体的叔哌嗪-2-酮。脱保护和还原得到相应的叔哌嗪,其可用于合成医学上重要的类似物。这些手性叔哌嗪的引入导致伊马替尼类似物表现出与其相应的伊马替尼对应物相当的抗增殖活性。