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:
Mar. 15, 1988
Filed:
Sep. 10, 1986
Peter Bod, Gyomro, HU;
Kalman Harsanyi, Budapest, HU;
Eva gai nee Csongor, Budapest, HU;
Erik Bogsch, Budapest, HU;
Eva Fekecs, Budapest, HU;
Ferenc Trischler, Budapest, HU;
Gyorgy Domany, Budapest, HU;
Istvan Szabadkai, Budapest, HU;
Bela Hegedus, Budapest, HU;
Richter Gedeon Vegyeszeti Gyar Rt., Budapest, HU;
Abstract
The invention relates to new propionamidine derivatives of formula (I) ##STR1## wherein X is halogen, and to a process for their preparation. According to the invention compounds of the formula (I) are prepared by reacting a 3-halopropionitrile of the formula (III) ##STR2## wherein X is as defined above, with sulfamide of the formula (II) ##STR3## in the presence of a hydrogen halide. Compounds of the formula (I) are useful intermediates in the preparation of famotidine.