作者:Yang Zou、Yikang Wu
DOI:10.1002/anie.201201395
日期:2012.5.14
highly efficient enantioselective total synthesis of the natural antibiotic IKD‐8344 is achieved through a convergent route. This route features an otherwise impossible concurrent formation of the THF rings from a linear polyketide precursor through intramolecular O alkylations of mesylates in competition with normally rather facile β elimination and/or α racemization reactions (see scheme, Ms=methanesulfonyl)
天然抗生素IKD-8834的高效对映选择性全合成是通过聚合途径实现的。该途径的特征在于,通过线性甲硅烷基化物的分子内O烷基化反应,通常不能轻易地由直链聚酮化合物前体形成THF环,而竞争通常是相当容易的β消除和/或α外消旋化反应(参见方案,Ms =甲磺酰基)。