Process for making ondansetron and intermediates thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 9, 2006
Grant Date -
Sep 16, 2004
app pub date -
Jan 23, 2004
filing date -
Jan 24, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process useful for making ondansetron that comprises reacting a carbazolone in a reaction mixture comprising a carbazolone of formula (2), a formaldehyde or precursor thereof, and an amine of formula (3) in a non-aqueous polar solvent and in the presence of a water binding agent. The reaction product(s) can be reacted with an amine of formula (5) to form ondansetron. The water binding agent can improve the yield and/or speed of the reaction ##STR00001##
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