Process For The Preparation of 7 alpha-Methylsteroids
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Apr 22, 2010
filing date -
Jan 21, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to a process for the preparation of 7α-methyl hydroxy steroids of the formula IMgX, X being a halogen, to the 4,6-unsaturated 3-ketosteroid of formula II,comprising protecting the hydroxy group of the steroid of formula II with a trialkylsilyl group, followed by treating the hydroxy protected steroid with the Grignard reagent.The process of the invention is useful for the production of pharmacologically interesting steroids.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully