Total synthesis of halichondrins: Enantioselective construction of a homochiral tetracyclic KLMN-ring intermediate from D-mannitol
作者:Elso DiFranco、Vasulinga T. Ravikumar、Robert G. Salomon
DOI:10.1016/s0040-4039(00)73673-2
日期:1993.5
An efficient strategy exploiting C2 symmetry and featuring diastereoselective conjugate addition of Li2Me2CuCN to a γ-alkoxy-α,β-unsaturated acylsilane and diastereoselective spiroketalization provides a key tetracyclic KLMN-ring intermediate for halichondrin B from D-mannitol.
利用C2对称性和将Li 2 Me 2 CuCN非对映选择性共轭加成至γ-烷氧基-α,β-不饱和酰基硅烷和非对映选择性螺酮缩合的有效策略,为D-甘露醇中的芦丁酮B提供了关键的四环KLMN环中间体。