US3925480A
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Novel 16,17{60 {0 and 17,17{60 {0 diketo-D-homosteroids and their method of preparation
Assignee: Centre National de la Recherche Scientifique
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Filing: 1967-03-23
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Granted: 1975-12-09
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Expires: 1987-03-23
Abstract
Abstract This invention provides novel 16,17 Alpha - and 17,17 Alpha diketo-D-homosteroids, and a method for their preparation from corresponding 16,17-diketo-steroids by reaction with diazoalkanes. Typical novel compounds according to the invention are 3-methoxy-16,17 Alpha -diketo-D-homoestratriene-1,3,5(10 and 3 Beta -hydroxy-17,17 Alpha -diketo-D-homo-androstene. Such compounds have utility as synthetic intermediates, and also have valuable pharmacodynamic properties. Pharmaceutical compositions containing these novel compounds are also provided, having useful hypocholesterolemic and hypolipidemic activity.
Inventors
- 👤 Bernard Gastambide
- 👤 Claude Thal
- 👤 Phillippe Rohrbach
- 👤 Marie-Jeanne Laroche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:24
CPC Classifications
C; C07; C07J; C07J63/00; C07J63/008
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
6 words
DIKETO-D-HOMOSTEROID OF ONE OF THE FORMULAE
Claim 2
Dependent Claim
6 words
DIKETO-D-HOMOSTEROID OF ONE OF THE FORMULAE
Claim 3
Dependent Claim
13 words
The compound according to claim 1 which is 3 Beta -hydroxy-16,17 Alpha -diketo-D-homo-androstene-5.
Claim 4
Dependent Claim
13 words
The compound according to claim 1 which is 3 Beta -hydroxy-17,17 Alpha -diketo-D-homo-androstene-5.
Claim 5
Dependent Claim
13 words
The compound according to claim 1 which is 3 Beta -hydroxy-16,17 Alpha -diketo-D-homo-androstane.
Claim 6
Dependent Claim
13 words
The compound according to claim 1 which is 3 Beta -hydroxy-17,17 Alpha -diketo-D-homo-androstane.
Claim 7
Dependent Claim
6 words
A D-homoandrostanedione according to claim 1.
Claim 8
Dependent Claim
6 words
A 5-D-homoandrostenedione according to claim 1.
Claim 9
Dependent Claim
6 words
A D-homoestra-1,3,5(10)-trienedione according to claim 1.
Claim 10
Dependent Claim
6 words
3-methoxy-16, 17 Alpha -diketo-D-homo-estratriene-1,3,5,-D-homoestra-1,3,5(10)-triene-16,17 Alpha -dione.
Claim 11
Dependent Claim
6 words
3-methoxy-16, 17 Alpha -diketo-D-homo-estratriene-1,3,5,-D-homoestra-1,3,5(10)-triene-16,17 Alpha -dione.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |