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:
May. 16, 1978
Filed:
Sep. 17, 1975
Applicant:
Inventors:
Zoltan Meszaros, Budapest, HU;
Jozsef Knoll, Budapest, HU;
Istvan Hermecz, Budapest, HU;
Piroska Simon, Budapest, HU;
Peter Szentmiklosy, Budapest, HU;
Lelle Vasvari, Budapest, HU;
Agnes Horvath, Budapest, HU;
Gabor Horvath, Budapest, HU;
Peter Dvortsak, Ocsa, HU;
Assignee:
Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt., Budapest, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 2602 / ; 544356 ; 544336 ; 544405 ; 544408 ; 544409 ; 544406 ; 544407 ; 544292 ; 544293 ; 544332 ; 544329 ; 544322 ;
Abstract
The present invention is concerned with the preparation of chemical intermediates, namely, beta-amino-acrylic acid ester derivatives of nitrogen heterocycles, i.e. pyridine, quinoline, quinoxaline, pyrazine, pyrimidine and the like. Said intermediates are cyclized to form pyrido-pyrimidine type final products possessing analgesic activity.