Use of 18-methyl-15β, 16β-methylene-19-nor-20-spiroxa-4-en-3-one in the treatment of hypermenorrhea and 18-methyl-15β, 16β for the treatment of uterine bleeding disorders Intrauterine system containing methylene-19-nor-20-spiroxa-4-en-3-one

摘要

The present invention relates to the general formula (1): formula (1) in the treatment of hypermenorrhea, generally the treatment of uterine bleeding disease, wherein R6 and R7 are hydrogen atoms or together. Of 18-methyl-15β, 16β-methylene-19-nor-20-spiroxa-4-en-3-one, present as an α-methylene group, and compounds of formula 1 for such use Intrauterine system including