US Patent
US8426586 — Process for preparing amino crotonyl compounds
Composition of Matter · Assigned to Boehringer Ingelheim International GmbH · Expires 2029-10-10 · 3y remaining
Vulnerability score
0/100
Ironclad — strong claim type, well-established, deep family
What this patent protects
This patent protects an improved process for preparing a specific type of amino crotonyl compound, a pharmaceutically active substance.
USPTO 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.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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