A Short and Efficient Stereoselective Synthesis of the Polyhydroxylated Macrolactone (<i>+</i>)-Aspicilin
作者:Darren J. Dixon、Alison C. Foster、Steven V. Ley
DOI:10.1021/ol991214s
日期:2000.1.1
and efficient synthesis of the polyhydroxylated macrolactone (+)-aspicilin 1 using a stereoselective lithium perchlorate mediated addition of allyltributyltin to the equatorially disposed carboxaldehyde of 3 (derived from (R',R',R,S) butane diacetal protected butane tetrol 2) as the key step is described. Terminal group manipulation and Masamune-Roush olefination using phosphonate ester 4 followed by