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

Patent Metadata

Patent number
US8426586
Jurisdiction
US
Classification
Composition of Matter
Expires
2029-10-10
Drug substance claim
Yes
Drug product claim
No
Assignee
Boehringer Ingelheim International GmbH
Source
FDA Orange Book + USPTO grounding via Google Patents

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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