Back to results
US 4,539,429 AGranted
Substituted aminophenylalkyl ketones, their preparation and use
AssigneeSterling Drug Inc.
InventorDenis M. Bailey
Life of this patent
Estimating the term…
Abstract
Novel lower-alkyl 2-(hydroxyphenylamino)phenyl ketones, useful as inhibitors of lipoxygenase activity, are of the formula ##STR1## wherein R is hydrogen, lower-alkyl, lower-alkoxy or halo; R' is hydrogen or lower-alkyl; R" is hydrogen, lower-alkyl or halo; and Alk is lower-alkyl. The compounds are prepared by de-etherification of the corresponding alkyl or benzyl ethers which are in turn prepared by reacting a 2-(alkoxy- or benzyloxyphenylamino)benzoic acid with an alkyllithium.
Claims7
A compound of the formula ##STR5## wherein:
- R is hydrogen, lower-alkyl, lower-alkoxy or halo;
- R' is hydrogen or lower-alkyl;
- R" is hydrogen, lower-alkyl or halo;
- and
- Alk is lower-alkyl.
2 more elements
Dependencies are inferred from the claim text.