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:
Apr. 23, 2013
Filed:
Jul. 14, 2006
Rainer Soyka, Biberach, DE;
Werner Rall, Mittelbiberach, DE;
Juergen Schnaubelt, Oberhoefen/Warthausen, DE;
Peter Sieger, Mittelbiberach, DE;
Christian Kulinna, Attenweiler, DE;
Rainer Soyka, Biberach, DE;
Werner Rall, Mittelbiberach, DE;
Juergen Schnaubelt, Oberhoefen/Warthausen, DE;
Peter Sieger, Mittelbiberach, DE;
Christian Kulinna, Attenweiler, DE;
Boehringer Ingelheim International GmbH, Ingelheim am Rhein, DE;
Abstract
An improved process for preparing 4-[(3-chloro-4-fluorophenyl)amino]-6-{[4-(N,N-dimethylamino)-1-oxo-2-buten-1-yl]amino}-7-((S)-tetrahydrofuran-3-yloxy)-quinazoline and related aminocrotonyl compounds and the preparation of a suitable salt of 4-[(3-chloro-4-fluorophenyl)amino]-6-{[4-(N,N-dimethylamino)-1-oxo-2-buten-1-yl]amino}-7-((S)-tetrahydrofuran-3-yloxy)-quinazoline for use as a pharmaceutically active substance.