Department of Chemistry & Biochemistry, The Ohio State University , Columbus, Ohio 43210, United States.
Org Lett. 2013 May 17;15(10):2338-41. doi: 10.1021/ol400487e. Epub 2013 Apr 29.
An efficient synthesis of the C1-C21 fragment of azaspiracids-1 and -3 is described. This features a Nozaki-Hiyama-Kishi reaction to couple the AB and CD ring precursors and formation of the THF-fused ABCD trioxadispiroketal system under thermodynamic conditions.
描述了azaspiracid-1 和 -3 的 C1-C21 片段的有效合成。该方法采用 Nozaki-Hiyama-Kishi 反应连接 AB 和 CD 环前体,并在热力学条件下形成 THF 稠合的 ABCD 三氧杂双螺环缩酮系统。