Efficient Total Synthesis of Khafrefungin: Convergent Approach Using Suzuki Coupling under Thallium-free Conditions Toward Multigram-scale Synthesis
作者:Yuichiro Mori、Masayuki Nakamura、Takeshi Wakabayashi、Kouhei Mori、Shū Kobayashi
DOI:10.1055/s-2002-22726
日期:——
An efficient and practical synthetic route to khafrefungin, an antifungal agent, has been developed based on successive coupling of three components, 3, 4, and then 2. A key step of the synthesis is the Suzuki coupling of 2 and 10, in which the use of toxic thallium ethoxide has been avoided, and the coupling adduct (11) was obtained in multigram-scale quantities.
基于 3、4 和 2 这三种成分的连续偶联,开发出了一种高效实用的抗真菌剂卡夫林合成路线。合成的关键步骤是 2 和 10 的铃木偶联,在此过程中避免了使用有毒的乙醇铊,并获得了多克量级的偶联加合物(11)。