Synthetic studies toward longeracemine: The intramolecular [4+2] cycloaddition of 3H-pyrroles
作者:Joshua B. Cox、John L. Wood
DOI:10.1016/j.tet.2018.07.024
日期:2018.8
Model studies to develop a tetracyclization approach mimicking the proposed biosynthesis of the secodaphnane-type alkaloid longeracemine are described. These studies have culminated in the successful implementation of a 3H-pyrrole [4+2] cycloaddition that delivers a longeracemine-like azabicycle containing three contiguous quaternary stereocenters.
描述了开发四环化方法的模型研究,该方法模拟拟议中的苏打法烷型生物碱长乙胺的生物合成。这些研究最终成功地实现了3 H-吡咯[4 + 2]环加成反应,该环加成反应产生了一个包含三个连续的四级立体中心的类似长乙胺的氮杂双环。