The possible role of an iminium ion mediated Diels-Alder reaction on the biosynthetic pathway to himgravinc is discussed. The results of a preliminary investigation of a related oxycarbenium ion mediated Diels-Alder reaction are reported and are in accord with the stereochemistry of the natural product.
讨论了
亚胺离子介导的Diels-Alder反应在通往hegravinc的
生物合成途径中的可能作用。据报道有关氧碳鎓离子介导的Diels-Alder反应的初步研究结果与
天然产物的立体
化学相符。