CA2450961A1 — Crystalline anticholinergic, processes for preparing it and its use for preparing a pharmaceutical composition
Assigned to Boehringer Ingelheim Pharma GmbH and Co KG · Expires 2003-01-03 · 23y expired
What this patent protects
The invention relates to crystalline, water-free (1.alpha.,2.beta.,4.beta.,5.alpha.,7.beta.)-7-[(hydroxydi-2-thienylacetyl)ox y]- 9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonane-bromide, to a method f or its production, and to the use thereof in the production of a drug, es…
USPTO Abstract
The invention relates to crystalline, water-free (1.alpha.,2.beta.,4.beta.,5.alpha.,7.beta.)-7-[(hydroxydi-2-thienylacetyl)ox y]- 9,9-dimethyl-3-oxa-9-azoniatricyclo[3.3.1.02,4]nonane-bromide, to a method f or its production, and to the use thereof in the production of a drug, especial ly in the production of an anticholinergic drug.
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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