Oxazolone Cycloadducts as Heterocyclic Scaffolds for Alkaloid Construction: Synthesis of (±)-2-epi-Pumiliotoxin C
摘要:
Intramolecular Diels-Alder cycloaddition of N-substituted oxazolone triene I allows direct entry to the functionalized octahydroquinoline II. Further manipulation of this framework by stereo- and regioselective introduction of the 5-methyl substituent, followed by excision of the carbamate, yields (+/-)-2-epi-pumiliotoxin C.
Oxazolone Cycloadducts as Heterocyclic Scaffolds for Alkaloid Construction: Synthesis of (±)-2-epi-Pumiliotoxin C
摘要:
Intramolecular Diels-Alder cycloaddition of N-substituted oxazolone triene I allows direct entry to the functionalized octahydroquinoline II. Further manipulation of this framework by stereo- and regioselective introduction of the 5-methyl substituent, followed by excision of the carbamate, yields (+/-)-2-epi-pumiliotoxin C.
Oxazolone Cycloadducts as Heterocyclic Scaffolds for Alkaloid Construction: Synthesis of (±)-2-<i>epi</i>-Pumiliotoxin C
作者:Stephen Philip Fearnley、Charnsak Thongsornkleeb
DOI:10.1021/jo902172r
日期:2010.2.5
Intramolecular Diels-Alder cycloaddition of N-substituted oxazolone triene I allows direct entry to the functionalized octahydroquinoline II. Further manipulation of this framework by stereo- and regioselective introduction of the 5-methyl substituent, followed by excision of the carbamate, yields (+/-)-2-epi-pumiliotoxin C.