EP0188010A1 — New process for the preparation of certain steroids, especially intermediates for the preparation of proligestone and related compounds, and new intermediates formed in this process
Assigned to Gist Brocades NV · Expires 1986-07-23 · 40y expired
What this patent protects
The invention relates to a new process for the preparation of 14-alpha-17-alpha-dihydroxy-17-beta-substituted steroids by reaction of 14-alpha-hydroxy-17-oxo-steroids with metal organic compounds. Furthermore, the invention relates to the 14-alpha-17-alpha-dihydroxy-17-beta- subs…
USPTO Abstract
The invention relates to a new process for the preparation of 14-alpha-17-alpha-dihydroxy-17-beta-substituted steroids by reaction of 14-alpha-hydroxy-17-oxo-steroids with metal organic compounds. Furthermore, the invention relates to the 14-alpha-17-alpha-dihydroxy-17-beta- substituted steroids prepared by the new process and their use in the production of 14-alpha-17-alpha- methylenedioxypregnane derivatives.
Drugs covered by this patent
- Abilify (aripiprazole) · Generic (originally Otsuka/BMS)
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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