A Practical Synthesis of the F-Ring of Halichondrin B via Ozonolytic Desymmetrization of a<i> C</i><sub>2</sub>-Symmetric Dihydroxycyclohexene
作者:Lei Jiang、Joseph R. Martinelli、Steven D. Burke
DOI:10.1021/jo026302w
日期:2003.2.1
one-pot Criegee ozonolysis/acylation protocol to afford acetal-lactone 2. Installation of the allyl side chain on the convex face of the bicyclicsystem and subsequent reduction provided the desired tetrahydrofuran 4 with the correct relative and absolute stereochemistries. Simple functional group manipulations led to the desired F-ring module 3 of halichondrin B.