US4360533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glyceryl ester of 1-methyl-2-(3,4-dihydroxyphenyl)alanine
Assignee: Merck and Co Inc
•
Filing: 1981-12-14
•
Granted: 1982-11-23
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Expires: 2001-12-14
Abstract
Abstract Glyceryl esters of 1-methyl-2-(3,4-dihydroxyphenyl)alanine, pharmaceutical compositions and method of treatment are disclosed.
Inventors
- 👤 Arthur A. Patchett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:53
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/21; A61K31/215; A61K31/25; C; C07; C07C; C07C229/00; C07C229/02; C07C229/34; C07C229/36
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
11 words
A compound of the formula ##STR4## and pharmaceutically acceptable salts thereof.
Claim 2
Dependent Claim
11 words
A compound of the formula ##STR4## and pharmaceutically acceptable salts thereof.
Claim 3
Dependent Claim
17 words
The compound of claim 1 having the L-configuration at the --C(CH 3 )(NH 2 )-- chiral center.
Claim 4
Dependent Claim
8 words
The hydrochloride salt of the claim 1 compound.
Claim 5
Dependent Claim
8 words
The hydrochloride salt of the claim 2 compound.
Claim 6
Dependent Claim
12 words
A pharmaceutical composition useful for treating hypertension containing a claim 1 compound.
Claim 7
Dependent Claim
17 words
A method of treating hypertension which comprises administering an effective dose of a compound of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |