US4086269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
11-Deoxy-15-substituted prostaglandins
Assignee: Wyeth LLC
•
Filing: 1976-08-16
•
Granted: 1978-04-25
•
Expires: 1996-08-16
Abstract
Abstract Processes for the total synthesis of dl-11-deoxy-15-substituted prostaglandins, novel intermediates therefore, certain novel final products, as well as optical resolutions of the final products are disclosed.
Inventors
- 👤 Donald P. Strike
- 👤 Wenling Kao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:37
CPC Classifications
C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A compound of the formula: ##STR32## wherein R 8 is hydrogen, alkyl of from 1 to about 6 carbon atoms, alkali metal, or a pharmacologically acceptable cation derived from ammonia or a basic amine.
Claim 2
Dependent Claim
34 words
A compound of the formula: ##STR32## wherein R 8 is hydrogen, alkyl of from 1 to about 6 carbon atoms, alkali metal, or a pharmacologically acceptable cation derived from ammonia or a basic amine.
Claim 3
Dependent Claim
11 words
A compound as defined in claim 1 which is dl-7-(2β-[(3R)-3-ethynyl-3-hydroxy-trans-1-octenyl]-5-oxo-1α-cyclopentyl)-5-heptynoic acid.
Claim 4
Dependent Claim
11 words
A compound as defined in claim 1 which is dl-7-(2β-[(3S)-3-ethynyl-3-hydroxy-trans-1-octenyl]-5-oxo-1α-cyclopentyl)-5-heptynoic acid.
References Cited (Backward Citations)
US3816393A
Cited
US3849474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |