作者:Vladimir B. Birman、Samuel J. Danishefsky
DOI:10.1021/ja012495d
日期:2002.3.1
The total synthesis of the title compound has been accomplished in 20 steps. The key step is a free radical cyclization of vinyl bromide 29 to afford 30. The synthesis also features an efficient Dielsminus signAlder reaction of 2,3-dimethylmaleic anhydride with 1-(tert-butyldimethylsiloxy)-butadiene. The oxetane moiety of merrilactone A is fashioned via a Payne-like rearrangement of a hydroxyepoxide
标题化合物的全合成分20步完成。关键步骤是乙烯基溴 29 的自由基环化得到 30。该合成还具有 2,3-二甲基马来酸酐与 1-(叔丁基二甲基甲硅烷氧基)-丁二烯的高效 Dielsminus sign-Alder 反应。merrilactone A 的氧杂环丁烷部分是通过羟基环氧化物的 Payne 样重排形成的(参见 2 右箭头 1)。