EP Patent
EP0911333A1 — Pyrazolo[4,3-d]pyrimidine derivatives and pharmaceutical compositions containing them
Assigned to Pfizer Inc · Expires 1999-04-28 · 27y expired
What this patent protects
Compounds are disclosed which are useful as PDE1 inhibitors. The compounds have the formula:
USPTO Abstract
Compounds are disclosed which are useful as PDE1 inhibitors. The compounds have the formula:
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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