Formal Synthesis of the Bryostatin Northern Hemisphere: Asymmetric Synthesis of the B Ring and C1-C9 Fragment
作者:Kyoko Nakagawa-Goto、Michael Crimmins
DOI:10.1055/s-0030-1260586
日期:2011.6
A formal synthesis of the top half fragment of bryostatin 11has been developed. Stereoselective construction of the Bring wasachieved by using a ring-closing metathesis reaction in conjunctionwith asymmetric glycolate alkylation. Furthermore, the C1-C9fragment was synthesized by Brown allylation, chelation-controlledaldol condensation, and Saksena-Evans reduction to constructall stereogenic centers