US3796697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentapeptide
Assignee: Abbott Laboratories
•
Filing: 1971-11-02
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Granted: 1974-03-12
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Expires: 1991-11-02
Abstract
Abstract THE SYNTHESIS OF THE PENTAPEPTIDE GLY-LEU-ARG-PRO-GLY-AMIDE CARRYING EASILY REMOVABLE PROTECTIVE GROUPS ON THE NA OF GLYCINE AND ON THE ARG MOIETY IS DESCRIBED; THE CORRESPONDNGLY PROTECTED TERAPEPTIDE IS USED AS THE STARTING MATERIAL. THE NEW PENTAPEPTIDE, UPON REMOVAL OF THE PROTECTIVE GROUP ON THE AMINO GROUP OF THE GLYCINE MOIETY IS AN IMPORTANT INTERMEDIATE FOR THE PREPARATION OF THE GONADOTROPIN-RELEASING HORMONE.
Inventors
- 👤 G Flouret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:35
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/10; C07K5/1002; C07K5/1005; C07K7/00; C07K7/04; C07K7/23; Y; Y10; Y10S; Y10S930/00; Y10S930/01; Y10S930/13
Claims Analysis
Total Claims: 0
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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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |