作者:Sandip P. Udawant、Tushar Kanti Chakraborty
DOI:10.1021/jo200396q
日期:2011.8.5
Enantioselective total synthesis of mupirocin H is accomplished starting from d-glucose featuring strategic application of d-glucose derived chirality, diastereoselective Still–Barrish hydroboration, and further elaboration of carbon chain to furnish a phenyltetrazolyl sulfone intermediate, which on coupling with (2S,3S)-2-methyl-3-(triisopropylsilyloxy)butanal under Julia–Kocienski olefination conditions
莫匹罗星H的对映选择性全合成是从d-葡萄糖开始的,其特征在于d-葡萄糖的手性策略性应用,非对映选择性的Still-Barrish硼氢化,并进一步精制碳链以提供苯基四唑基砜中间体,该中间体与(2 S,在Julia-Kocienski烯烃化条件下的3 S)-2-甲基-3-(三异丙基甲硅烷基氧基)丁醛选择性地提供了一种先进的E-烯烃中间体。将E-烯烃转化为4-羟基腈(一种预最终底物),在酸催化的氧化内酯化反应中,该化合物在19步中即可从已知化合物6中获得目标分子莫匹罗星H (最长的线性序列),总产率为4.96%。