METHOD FOR THE PRODUCTION OF 17 ALPHA-ACETOXY-6-METHYLENEPREGN-4-ENE-3,20-DIONE, MEDROXYPROGESTERONE ACETATE, AND MEGESTROL ACETATE

摘要

The invention relates to a method for producing 17a-acetoxy-6-methylenepregn-4-ene-3,20-dione (4) as an intermediate preparation as well as methods for producing medroxyprogesterone acetate (1) (17a-acetoxy-6a-methylpregn-4-ene-3,20-dione) and megestrol acetate (2) (17a-acetoxy-6-methylpregna-4,6-diene-3,20-dione) via said intermediate preparation (4).