A concise approach for the synthesis of core fragment C7-C15 of (+)-migrastatin using desymmetrization strategy

The core fragment C7-C15 the (+)-migrastatin was constructed in a stereoconvergent manner utilizing desymmetrization approach. The strategy involved the generation of Z-configuration of trisubstituted double bond at C11-C12, epimerization at C10, ring opening of the pyran lactol with C2 Wittig ylide, and regioselective Sharpless dihydroxylation