PROCESS FOR THE PREPARATION OF 17,18-DEHYDRO-APOVINCAMINOL-3', 4',5'-TRIMETHOXY-BENZOATE AND OF PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

The invention relates to the new 17,18-dehydro-apovincaminol-3',4',5'-trimethoxy-benzoate of formula (I) IMAGE (1) and acid addition salts thereof. According to another aspect of the invention there is provided a process for the preparation of these new compounds. Still another aspect of the invention is a pharmaceutical composition for treating psoriasis.