作者:Olivier Lepage、Pierre Deslongchamps
DOI:10.1021/jo026676p
日期:2003.3.1
We published recently our results on a new and convergent synthesis of natural steroids. The strategy was based on a cycloaddition reaction of Nazarov reagents 2 and 5 with cyclohexenones 1 and 4. In this paper we report results that deal with the synthesis of two new bicyclic Nazarov reagents (13 and 19) and their cycloaddition with two cyclohexenones (1 and 4). These new results constitute an important
我们最近发表了关于新的和聚合的天然类固醇合成的研究结果。该策略基于Nazarov试剂2和5与环己烯酮1和4的环加成反应。在本文中,我们报告的结果涉及两种新的双环Nazarov试剂(13和19)的合成以及它们与两种环己烯酮的环加成反应(1和4)。这些新结果构成了有关该策略多功能性的重要改进,因为现在可以使用在天然类固醇中发现具有立体化学的四环化合物。