abstract |
The present invention provides pharmaceutically acceptable salts of estra-5 (10), 7-diene-3β-ol-17-one or 3-sulfate esters thereof, estra-5 (10), 7-diene-3β-ol- Pharmaceutically acceptable salts of 17-on 3-glucuronide or pharmaceutically acceptable salts thereof, estra-5 (10), 7-diene-3α-ol-17-one or 3-sulfate esters thereof, Estra-5 (10), 7-diene-3β-ol-17-one 3-glucuronide or a pharmaceutically acceptable salt thereof, estra-5 (10), 7-diene-3β-ol-17- On-3-alkali metal salts, and estra-5 (10), 7-diene-3α-ol-17-one 3-alkali metal salts, which are useful as estrogen agents. |