EP Patent

EP0384228A1 — Medicament for treating cerebral insufficiency diseases containing 2-(1-piperazinyl)-4-phenylcycloalkanopyrimidine derivatives, and process for the production thereof

Assigned to Sumitomo Pharma Co Ltd · Expires 1990-08-29 · 36y expired

What this patent protects

Medicament for the treatment of cerebral insufficiency diseases comprising as an active ingredient a compound of the formula: wherein n is 3, 4, 5 or 6; R¹ is hydrogen atom, C₁-C₆ alkyl, C₃-C₈ cycloalkyl, hydroxy-(C₂-C₆) alkyl, unsubstituted or substituted aryl, heteroaryl,…

USPTO Abstract

Medicament for the treatment of cerebral insufficiency diseases comprising as an active ingredient a compound of the formula: wherein n is 3, 4, 5 or 6; R¹ is hydrogen atom, C₁-C₆ alkyl, C₃-C₈ cycloalkyl, hydroxy-(C₂-C₆) alkyl, unsubstituted or substituted aryl, heteroaryl, unsubstituted or substituted aryl-(C₁-C₆) alkyl, unsubstituted or substituted aryl­carbonyl-(C₁-C₆) alkyl, or acyl; R² is hydrogen atom, halogen atom, C₁-C₆ alkyl, C₁-C₆ alkoxy, or trifluoromethyl; and R³ is hydrogen atom or C₁-C₆ alkyl, or an acid addition salt thereof, novel 2-(1-piperazinyl)-4-phenyl-cycloalkano­pyrimidine derivatives having excellent cerebral function improving activity, processes for the preparation thereof.

Drugs covered by this patent

Patent Metadata

Patent number
EP0384228A1
Jurisdiction
EP
Classification
—
Expires
1990-08-29
Drug substance claim
No
Drug product claim
No
Assignee
Sumitomo Pharma Co Ltd
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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