A Concise Enantioselective Synthesis of (S)-Preclamol via Asymmetric Catalytic Negishi Cross-Coupling Reaction
作者:Yun Zhou、Chunxiao Liu、Lifeng Wang、Leng Han、Shicong Hou、Qinghua Bian、Jiangchun Zhong
DOI:10.1055/s-0037-1611759
日期:2019.4
novel, concise, and efficient enantioselective synthesis of (S)-preclamol (87% ee, 51% total yield) has been developed. The key steps of this synthetic approach included cobalt-catalyzed asymmetric catalytic cross-coupling of α-bromo ester with arylzinc and the reduction of chiral ester to diol with a tertiary carbon atom. Moreover, it was demonstrated that our enantioselective Negishi cross-coupling was
已经开发出一种新颖、简洁且高效的 (S)-preclamol 的对映选择性合成(87% ee,51% 总产率)。这种合成方法的关键步骤包括钴催化α-溴酯与芳基锌的不对称催化交叉偶联以及手性酯还原为具有叔碳原子的二醇。此外,证明了我们的对映选择性 Negishi 交叉偶联是在克级手性药物中构建立体苄基甲基中心的有力工具。