A short, enantiospecific synthesis of a protected seco acid precursor to (R,R)-(−)-pyrenophorin
作者:Robert V. Hoffman、Tamas Patonay、Naresh K. Nayyar、Junhua Tao
DOI:10.1016/0040-4039(96)00323-1
日期:1996.4
Described herein is a four-step enantiospecificsynthesis of a protected seco acidprecursor of (R,R)-(−)-pyrenophorin in 23% yield from a chiral β-ketoester 3, which can be prepared in one step from ethyl acetoacetate by a standard procedure.