CA Patent

CA2044806A1 — Purine derivatives

Assigned to F Hoffmann La Roche AG · Expires 1992-01-19 · 34y expired

What this patent protects

Abstract Compounds of the formula wherein R1, R2, R3, R4, R5 and R6 have the significance given in claim 1, inhibit angiotensin II receptors and can accordingly be used in the form of pharmaceutical preparations for the control or prevention of high blood pressure and arteriosc…

USPTO Abstract

Abstract Compounds of the formula wherein R1, R2, R3, R4, R5 and R6 have the significance given in claim 1, inhibit angiotensin II receptors and can accordingly be used in the form of pharmaceutical preparations for the control or prevention of high blood pressure and arteriosclerosis. They can be manu-factured by N-biphenylmethylating corresponding unsubstituted purine derivatives according to methods known per se.

Drugs covered by this patent

Patent Metadata

Patent number
CA2044806A1
Jurisdiction
CA
Classification
—
Expires
1992-01-19
Drug substance claim
No
Drug product claim
No
Assignee
F Hoffmann La Roche AG
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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