Use of 18-methyl-15b, 16b-methyl-15b, 16b-methyl-19-nor-20-helix-4-en-3-onas and intrauterine system including 18-methyl-15b, 16b-methyl-19-nor-20-helix-4-en-3-onas to treat uterine bleeding during menopause

摘要

The compounds are from 18-methyl-15 (β), 16 (β) - methyl-19-nor-20-helix-4-in-3-formaldehyde (1), R6 and R7 are hydrogen or a methylene group. It also relates to an intrauterine system including formula 1. These compounds are useful in the treatment of menopause, general intrauterine bleeding and so on.