Protected 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and epothilone derivatives and process for the production

摘要

The invention relates to 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and epothilone derivatives and process for the production of these new intermediate products in the synthesis and the use for the production of epothilones or epothilone derivatives.