A Synthesis of the Chlorosulfolipid Mytilipin A via a Longest Linear Sequence of Seven Steps
作者:Won-jin Chung、Joseph S. Carlson、D. Karl Bedke、Christopher D. Vanderwal
DOI:10.1002/anie.201304565
日期:2013.9.16
Magnificent seven: The chlorosulfolipid mytilipin A was synthesized in racemic form in seven steps and in enantioenriched form in eight steps. Key transformations include a highly diastereoselective bromoallylation of a sensitive α,β‐dichloroaldehyde, a kinetic resolution of a vinyl epoxide, a convergent and highly Z‐selective alkene cross‐metathesis, and a chemoselective and diastereoselective dichlorination
精彩七:氯硫脂 mytilipin A 以外消旋形式分七步合成,对映体富集形式分八步合成。关键转化包括敏感的 α,β-二氯醛的高度非对映选择性溴烯丙基化、乙烯基环氧化物的动力学拆分、会聚和高度Z选择性烯烃交叉复分解,以及复合二烯的化学选择性和非对映选择性二氯化。