Total Synthesis of Peniphenones A–D via Biomimetic Reactions of a Common <i>o</i>-Quinone Methide Intermediate
作者:Justin T. J. Spence、Jonathan H. George
DOI:10.1021/acs.orglett.5b02902
日期:2015.12.18
The total synthesis of peniphenones A–D has been achieved via Michael reactions between appropriate nucleophiles and a common o-quinone methide intermediate. This strategy, which was based on a biosynthetic hypothesis, minimized the use of protecting groups and thus facilitated concise syntheses of the natural products. The most complex target, the benzannulated spiroketal peniphenone A, was synthesized
苯甲酮A–D的总合成是通过适当的亲核试剂与常见的邻苯二甲酰甲基甲烷中间体之间的迈克尔反应实现的。基于生物合成假说的该策略最大程度地减少了保护基的使用,从而促进了天然产物的简洁合成。最复杂的靶标是苯并环的螺酮苯乙酮A,它是通过九个线性步骤由市售起始原料对映选择性合成的。