作者:Kengo Oka、Shunsuke Fuchi、Keita Komine、Hayato Fukuda、Susumi Hatakeyama、Jun Ishihara
DOI:10.1002/chem.202001773
日期:2020.10.6
The catalytic asymmetric total synthesis of (−)‐exiguolide, a complex 20‐membered macrolide embedded with a bis(tetrahydropyran) motif, is reported. The convergent synthesis involves the construction of the C1–C11 tetrahydropyran segment via catalytic asymmetric allylation and Prins cyclization, and the formation of the C12–C21 phosphonate segment via catalytic asymmetric cyclocondensation reaction
报道了(-)-exiguolide的催化不对称全合成,这是一种嵌有双(tetrahydropyran)基序的复杂的20元大环内酯。收敛合成涉及通过催化不对称烯丙基化和Prins环化反应构建C1-C11四氢吡喃链段,以及通过催化不对称环缩合反应和Johnson-Claisen重排形成C12-C21膦酸酯链段。的15-合成外延-exiguolide还描述。