process for the purification of 10 - deacetilbaccatina iii from 10 - deacetil - 2 - debenzoil - 2 - pentenoilbaccatina iii

摘要

A process for the preparation of 10-deacetyl-7,10-bis-trichloroacetylbaccatine III with HPLC purity higher than 99% and free from 2-debenzoyl-2-pentenoylbaccatine III by purification of 10-deacetyl-7,10-bis-trichloroacetylbaccatineIII followed by alkaline hydrolysis of the protecting groups in position 7 and 10.