A Modular and Diastereoselective 5 + 1 Cyclization Approach to N-(Hetero)Aryl Piperidines
作者:Matthew A. Larsen、Elisabeth T. Hennessy、Madeleine C. Deem、Yu-hong Lam、Josep Saurí、Aaron C. Sather
DOI:10.1021/jacs.9b13114
日期:2020.1.15
A new general de novo synthesis of pharmaceutically important N-(hetero)aryl piperidines is reported. This protocol uses a robustly diastereoselective reductive amination/aza-Michael reaction se-quence to achieve rapid construction of complex polysubstituted ring systems starting from widely available heterocyclic amine nu-cleophiles and carbonyl electrophiles. Notably, the diastereoselec-tivity of
报道了药学上重要的 N-(杂)芳基哌啶的一种新的通用从头合成。该协议使用稳健的非对映选择性还原胺化/氮杂-迈克尔反应序列,以从广泛可用的杂环胺亲核试剂和羰基亲电试剂开始,快速构建复杂的多取代环系统。值得注意的是,该过程的非对映选择性因水的存在而增强,并且 DFT 计算支持立体化学模型,该模型涉及水配位烯醇中间体的面部选择性质子化。