Convenient Synthesis of Substituted Piperidinones from α,β-Unsaturated Amides: Formal Synthesis of Deplancheine, Tacamonine, and Paroxetine
作者:Kiyosei Takasu、Naoko Nishida、Akiko Tomimura、Masataka Ihara
DOI:10.1021/jo050261x
日期:2005.5.1
An intermolecular aza-double Michael reaction leading to functionalized piperidin-2-ones from simple starting materials has been developed. The method allows alpha,beta-unsaturated amides to be used as a synthon of the piperidine nucleus. In addition, the utility of this methodology is demonstrated by its application to a formal synthesis of the indolo[2,3-a]quinolizidine alkaloids, (+/-)-deplancheine, (+/-)-tacamonine, and the antidepressant paroxetine.