Proceso para la preparación de 11-metilen-18-metilestr-4-en-3,17-diona, útil como intermedio en la síntesis de compuestos con actividad farmacológica

摘要

There is described a process for the industrial synthesis of 11-methylene-18-methyl-estr-4-en-3,17-dione, a compound having the structure formula (I) depicted below: (Formula I) (I) useful as intermediate compound in the synthesis of the progestin compounds Desogestrel and Etonogestrel.