AU642913B2 — New esters of thienyl carboxylic acids and amino alcohols, their quaternization products, and the manufacture and use of said compounds
Assigned to Boehringer Ingelheim International GmbH · Expires 1993-11-04 · 33y expired
What this patent protects
The new compounds of formula (I) (where A, R1, Ra and R2 are defined in the description) can be manufactured by processes known per se and used as the active ingredients of drugs.
USPTO Abstract
The new compounds of formula (I) (where A, R1, Ra and R2 are defined in the description) can be manufactured by processes known per se and used as the active ingredients of drugs.
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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