Gupton John T, Giglio Benjamin C, Eaton James E, Rieck Elizabeth A, Smith Kristin L, Keough Matthew J, Barelli Peter J, Firich Lauren T, Hempel Jonathan E, Smith Timothy M, Kanters Rene P F
Department of Chemistry, University of Richmond, Richmond, VA 23173, USA.
Tetrahedron. 2009 May 30;65(22):4283-4292. doi: 10.1016/j.tet.2009.03.085.
Studies directed at the synthesis of lamellarin G trimethyl ether and ningalin B via vinylogous iminium salt derivatives are described. The successful strategy relies on the formation of a 2,4-disubstituted pyrrole or a 1,2,3,4-tetrasubstituted pyrrole from a vinylogous iminium salt or vinylogous iminium salt derivative. Subsequent transformations of these highly substituted pyrroles lead to efficient and regiocontrolled formal syntheses of the respective pyrrole containing natural products.
描述了通过乙烯基类似亚胺盐衍生物合成片螺素G三甲醚和宁加林B的研究。成功的策略依赖于从乙烯基类似亚胺盐或乙烯基类似亚胺盐衍生物形成2,4-二取代吡咯或1,2,3,4-四取代吡咯。这些高度取代吡咯的后续转化导致了相应含吡咯天然产物的高效和区域选择性形式合成。