Cephalosporins
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 2001
Issued Date -
N/A
app pub date -
Jul 21, 1997
filing date -
Dec 12, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compound having the formula selected from the group consisting of ##STR1## wherein either R.sub.3p and R.sub.4p are identical and selected from the group consisting of --OH, protected --OH and acyloxy of 1 to 8 carbon atoms, R.sub.2p is selected from the group consisting of --CN, --F, Br and I and R.sub.1p and R.sub.5p are hydrogen or R.sub.5p is --F and R.sub.1p and R.sub.2p are hydrogen or R.sub.1p and R.sub.2p are F and R.sub.5p is hydrogen, or R.sub.4p and R.sub.5p are identical and selected from the group consisting of --OH, protected --OH and acyloxy of 1 to 8 carbon atoms, R.sub.3p is selected from the group consisting of F and --CN and R.sub.1p and R.sub.2p are hydrogen, R.sub.8 is hydrogen or an amine protective group and R.sub.10 is the remainder in which the hydroxy or amino are protected ##STR2## wherein R'.sub.1 is selected from the group consisting of alkyl of 1 to 4 carbon atoms, --CN, carboxy and alkoxy carbonyl of 1 to 4 carbon atoms.
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