18-methyl-15, 16, ethylene-19-nor-20-helix-4-en-3-onas, intrauterine use containing 18-methyl-15, 16-methyl-19-nor-20-helix-4-en-3-onas, and their use in anticancer - strains and Gynecology therapy

摘要

The invention describes the intrauterine contraceptive method, gynaecological treatment and the intrauterine system containing Formula 1 compound in general formula (1) of 18-methyl-15 Di, 16 di-methyl-19-nor-20-helix-4-in general formula (1).