US3780014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octapeptide intermediate to gonadotropin releasing hormone
Assignee: Abbott Laboratories
•
Filing: 1971-09-16
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Granted: 1973-12-18
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Expires: 1991-09-16
Abstract
Abstract THE SYNTHESIS OF THE OCTAPEPTIDE TRP-SER-TYR-GLY-LEUARG-PRO-GLY-AMIDE CARRYING EASILY REMOVABLE PROTECTIVE GROUPS ON THE SER, TYR, ARG AND TRP MOIETIES IS DESCRIBED; THE CORRESPONDINGLY PROTECTED HEPTAPEPTIDE IS USED AS THE STARTING MATERIAL. THE OCTAPEPTIDE, UPON REMOVAL OF ANY PROTECTIVE GROUP ON THE AMINO-N OF THE TRYPTOPHANE 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
2026-11-05 17:21
CPC Classifications
C; C07; C07K; 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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |