US3896166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formyl-substituted tyrosine
Assignee: F Hoffmann La Roche AG
•
Filing: 1973-06-27
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Granted: 1975-07-22
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Expires: 1993-06-27
Abstract
Abstract The compound Alpha -amino-3-phenyl propionic acid and ethane derivatives wherein the phenyl ring is substituted with a formyl group useful as a hypotensive and appetite inhibiting agent.
Inventors
- 👤 Ado Kaiser
- 👤 Hermann Bretschneider
- 👤 Kraft Hohenlohe-Oehringen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:57
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA:
Claim 3
Dependent Claim
9 words
The compound of claim 1 which is in L-form.
Claim 4
Dependent Claim
8 words
The compound of claim 2 which is N-acetyl-3-formyl-L-tyrosine.
Claim 5
Dependent Claim
8 words
The compound of claim 2 which is 3-formyl-L-tyrosine.
Claim 6
Dependent Claim
10 words
The compound of claim 2 which is 3-formyl- Alpha -methyl-L-tyrosine.
Claim 7
Dependent Claim
10 words
The compound of claim 1 which is in the D,L-form.
Claim 8
Dependent Claim
8 words
The compound of claim 6 which is D,L-N-benzoyl-3-(3-formyl-4-hydroxy-5-methyl-phenyl)-alanine.
Claim 9
Dependent Claim
8 words
The compound of claim 6 which is D,L-4-formyltyrosine.
Claim 10
Dependent Claim
8 words
The compound of claim 6 which is D,L-3-formyl-5-methyltyrosine.
Claim 11
Dependent Claim
8 words
The compound of claim 1 which is 3-formyl-4-hydroxy-5-methyl-phenylalanine.
Claim 12
Dependent Claim
9 words
A process for producing a compound of the formula:
Claim 13
Dependent Claim
9 words
A process for producing a compound of the formula:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |