A Model System for the Synthesis of Complanadine Alkaloids by “Diverted Kondrat’eva” Oxazole–Olefin Cycloaddition
摘要:
A synthetic approach to complanadine alkaloids is described which employs a Kondrat'eva reaction to construct the pyridine rings. The viability of this approach is demonstrated by its application to a model substrate accessed from unfunctionalized decalin. The key transformation affords the desired tetracyclic architecture with unprecedented incorporation of substituents on the pyridine ring, implicating the oxazole a-hydroxy group as an active participant in the cycloadduct fragmentation process.
A Model System for the Synthesis of Complanadine Alkaloids by “Diverted Kondrat’eva” Oxazole–Olefin Cycloaddition
作者:Mario Uosis-Martin、G. Dan Pantoş、Mary F. Mahon、Simon E. Lewis
DOI:10.1021/jo401014n
日期:2013.6.21
A synthetic approach to complanadine alkaloids is described which employs a Kondrat'eva reaction to construct the pyridine rings. The viability of this approach is demonstrated by its application to a model substrate accessed from unfunctionalized decalin. The key transformation affords the desired tetracyclic architecture with unprecedented incorporation of substituents on the pyridine ring, implicating the oxazole a-hydroxy group as an active participant in the cycloadduct fragmentation process.