Process for the production of 3-1(1-amino-1,3-dicarboxy-3-hydroxy-but-4-yl) indole
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1992
Grant Date -
N/A
app pub date -
Jan 18, 1991
filing date -
Jan 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides a process for the production of 3-(1-amino-1,3-dicarboxy-3-hydroxy-but-4-yl) indole and certain salts and internal condensation products thereof. An unsaturated indolyl ester is reacted with ethylchloro(hydroxyimino)acetate in the presence of triethylamine in an organic solvent to cause a 1,3-dipolar addition reaction to form a di-ester. The di-ester is saponified to form a di-acid which di-acid is then reduced to form either the product indole or a salt thereof.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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