4,9(11),17(20)-pregnatriene-3-ones
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 15, 1994
Issued Date -
N/A
app pub date -
Nov 4, 1992
filing date -
May 23, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for the production of a compound of the formula ##STR1## wherein R is an acyl group of 1 to 8 carbon atoms. The compound is formed through an intermediate compound of the formula ##STR2## wherein R.sub.1 is selected from the group consisting of methyl, phenyl, tolyl, and xylyl and wherein K is a protective group selected from the group consisting of ##STR3## in which n is 2 or 3 and the wavy line means that the group SO.sub.2 --R.sub.1 may have either isomeric form or are mixtures thereof.
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