PROTECTED 5,7-DIHYDROXY-4,4-DIMETHYL-3-OXOHEPTANOIC ACID ESTERS AND 5,7-DIHYDROXY-2-ALKYL-4,4-DIMETHYL-3-OXOHEPTANOIC ACID ESTERS FOR SYNTHESIZING EPOTHILONES AND DERIVATIVES DERIVATIVES, AND METHODS FOR PRODUCING THESE ESTERS

摘要

The invention relates to protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives thereof, and to methods for producing these esters.