A NEW PROCESS FOR THE PREPARATION OF EPOTHILONE DERIVATIVES, NEW EPOTHILONE DERIVATIVES AS WELL AS NEW INTERMEDIATE PRODUCTS FOR THE PROCESS AND THE METHODS OF PREPARING SAME

摘要

The present invention provides a synthesis for the preparation of epothilone derivatives of formula (9) wherein R1 is methyl, and R2 has the meaning of an unsubstituted or substituted aryl, an unsubstituted or substituted heteroaryl or an unsubstituted or substituted heterocyclic radical fused to a benzene nucleus, and salts thereof, and intermediates for the synthesis of a compound of formula (9).