VERFAHREN ZUR HERSTELLUNG VON EPOTHILON B UND DERIVATEN DAVON

摘要

This invention relates to a process for the production of epothilone B and derivatives as well as intermediate products for this process. In the new process, epothilone B or the derivatives are built up in high yields from the C1-C6, C7-C10 and C11-C20 fragments (2, 3 and 4) that can be obtained at a reasonable price and free of diastereomers (the variable radicals have the meanings that are indicated in the description).