作者:David G. Twigg、Leonardo Baldassarre、Elizabeth C. Frye、Warren R. J. D. Galloway、David R. Spring
DOI:10.1021/acs.orglett.8b00340
日期:2018.3.16
The first total synthesis of bussealin E, a natural product with a unique cycloheptadibenzofuran scaffold, is reported. A strategy inspired by a proposed biosynthesis was employed whereby a diphenylpropane derivative underwent an oxidative phenolic coupling to forge the tetracyclic ring system. The synthesis of the diphenylpropane featured a key sp2–sp3 Hiyama coupling between a vinyldisiloxane and
据报道,具有独特的环庚二苯并呋喃支架的天然产物bussealin E的第一个全合成。采用了一种受提议的生物合成启发的策略,其中二苯丙烷衍生物经过氧化酚偶联以形成四环系统。二苯丙烷的合成具有乙烯基二硅氧烷和苄基溴之间的关键sp 2 –sp 3 Hiyama偶联。