natural products, biomimetic epoxide-opening cascade reactions were proposed as an efficient strategy for the synthesis of these compounds. However, difficulties in assembling the cascade precursors have limited the realization of these cascades. In this report, we describe strategies that provide convergent access to cascade precursors via regioselective allylation and efficient fragment coupling.
在最初分离出海洋梯形聚醚
天然产物之后不久,拟仿生的
环氧化物开放级联反应被提议为合成这些化合物的有效策略。但是,组装级联前体的困难限制了这些级联的实现。在本报告中,我们描述了通过区域选择性
烯丙基化和有效片段偶联提供对级联前体的聚合访问的策略。然后,我们研究由强碱促进的稠合
四氢吡喃形成的
环氧化物开放级联反应。这些策略在灯盏花F的CDEFG环的合成中进行了评估。