Patent US3923772A successfully refreshed from Google Patents.
US3923772A
Expired / Lapsed
US
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(1-{60 -aminoisobutyric acid)-corticotropin peptides
Assignee: Shionogi and Co Ltd
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Filing: 1974-05-14
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Granted: 1975-12-02
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Expires: 1994-05-14
Abstract
Abstract Highly active corticotropin peptides which have an Alpha aminoisobutyric acid residue at the amino-terminal in place of the serine in native corticotropin, derivatives thereof, intermediates therefor and compositions thereof are disclosed. Such peptides are useful as a medicament, because they show corticotropic properties remarkably improved in enhancement of potency and prolongation of action. They can be prepared by condensing the amino acids together one by one or by condensing the small peptide fragments together in a per se conventional manner.
Inventors
- 👤 Hideo Otsuka
- 👤 Ken Inouye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:27
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/665; C07K14/695; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
7 words
The compound Alpha -aminoisobutyryl-L-tyrosyl-L-seryl-L-norleucyl-L-glutamyl-L-histidyl-L -phenylalanyl-L-arginyl-L-tryptophyl-glycyl-L-lysyl-L-propyl-L-valyl-glycyl -L-lysyl-L-lysyl-L-lysyl-L-lysine amide.
References Cited (Backward Citations)
US3388112A
Cited
US3651039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |