Lee Jihoon, Panek James S
Department of Chemistry, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA.
Org Lett. 2009 Oct 1;11(19):4390-3. doi: 10.1021/ol901801h.
A convergent synthesis of brevisamide (1) is described based on the application of the crotyl silane-based [4 + 2]-annulation used for the preparation of the advanced oxygenated tetrahydropyran intermediate 2. The side chain bearing a conjugated (E,E)-diene was efficiently constructed under modified Negishi cross-coupling conditions.
基于用于制备高级氧化四氢吡喃中间体2的基于巴豆基硅烷的[4+2]环化反应,描述了短酰胺(1)的汇聚合成。在改良的根岸交叉偶联条件下,有效地构建了带有共轭(E,E)-二烯的侧链。