The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 1996
Filed:
Feb. 24, 1994
Susanna K Bjork, Sodertalje, SE;
Barry K Carpenter, New York, NY (US);
Birgitta K Gotthammar, Saltsjo-Boo, SE;
Mats T Linderberg, Sodertalje, SE;
Johan P Luthman, Gnesta, SE;
Kerstin M Persson, Nykvarn, SE;
Robert Schwarcz, Baltimore, MD (US);
Aktiebolaget Astra, Sodertalje, SE;
Cornell Research Foundation, Inc., Ithaca, NY (US);
The University of Maryland at Baltimore, Baltimore, MD (US);
Abstract
The present invention relates to novel derivatives of 3-hydroxyanthranilic acid, 3-HANA, of the general formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and selected from H, alkyl, aryl and arylalkyl; X and Y are the same or different and selected from alkoxy, aryloxy, alkyl, alkylthio, arylthio, fluoroalkyl, halogen, cyano, OSO.sub.2 CH.sub.3, OSO.sub.2 CF.sub.3, OCF.sub.3 and SCF.sub.3 with the proviso that the compound of formula I wherein R.sup.1 and R.sup.2 =H, X=Br and Y=Me is excluded;