CA Patent

CA1275350C — Lisinopril

Assigned to Merck and Co Inc · Expires 1990-10-16 · 36y expired

What this patent protects

The invention relates to new carboxyalkyl dipeptide derivatives of the formula: <IMG> wherein R and R6 are the same or different and are hydroxy or loweralkoxy; R1 is a substituted lower alkyl wherein the substituent is phenyl or halophenyl; R2 and R7 are hydrogen, R3 is lo…

USPTO Abstract

The invention relates to new carboxyalkyl dipeptide derivatives of the formula: <IMG> wherein R and R6 are the same or different and are hydroxy or loweralkoxy; R1 is a substituted lower alkyl wherein the substituent is phenyl or halophenyl; R2 and R7 are hydrogen, R3 is lower alkyl amino; R4 is lower alkyl; R5 is lower alkyl; R4 and R5 may be connected together to form an alkylene bridge of from 2 to 4 carbon atoms; and the pharmaceutically acceptable salts thereof. These compounds are useful as converting enzyme inhibitors and as antihypertensives.

Drugs covered by this patent

Patent Metadata

Patent number
CA1275350C
Jurisdiction
CA
Classification
—
Expires
1990-10-16
Drug substance claim
No
Drug product claim
No
Assignee
Merck and Co Inc
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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