ESTROGEN RECEPTOR β PARTIAL AGONIST HAVING ESTROGEN RECEPTOR α INHIBITORY EFFECT, AND THERAPEUTIC AGENT FOR GYNECOLOGICAL DISORDERS USING SAME

摘要

[Problem] To provide a therapeutic agent for estrogen-dependent gynecological disorders such as endometriosis, uterine fibroids, and adenomyosis. [Solution] An estrogen receptor α-inhibiting β partial agonist represented by structural formula (a), a pharmaceutically-acceptable salt thereof, or a hydrate of either of the aforementioned is used as an active ingredient.