US3970641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibiotic 27,706 RP and salt thereof
Assignee: Rhone Poulenc SA
•
Filing: 1972-01-19
•
Granted: 1976-07-20
•
Expires: 1992-01-19
Abstract
Abstract Antibiotics 20,798 RP and 27,706 RP of the general formula: ##SPC1## (wherein R represents a hydrogen atom or a hydroxy group) or acid addition salts thereof are prepared by reduction of a corresponding compound wherein the --CHOH--CH 2 --R group is replaced by ##EQU1## The antibiotics of general formula I have valuable anti-tumour properties; that wherein R is hydroxy (27,706 RP) is new.
Inventors
- 👤 Georges Jolles
- 👤 Gerard Ponsinet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:08
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/24; C07H15/252
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
The antibiotic herein designated 27,706 RP of the formula: ##SPC4## and non-toxic acid addition salts thereof.
Claim 2
Dependent Claim
16 words
The antibiotic herein designated 27,706 RP of the formula: ##SPC4## and non-toxic acid addition salts thereof.
Claim 3
Dependent Claim
12 words
The hydrochloride of the antibiotic 27,706 RP as defined in claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |