Patent US4218044A successfully refreshed from Google Patents.
Patent US3923783A successfully refreshed from Google Patents.
US3923783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5{41 -amino-4{40 ,5{41 -dideoxyambutyrosin
Assignee: Bristol Myers Co
•
Filing: 1973-06-15
•
Granted: 1975-12-02
•
Expires: 1993-06-15
Abstract
Abstract Derivatives of ambutyrosin A and 4''-deoxy-ambutyrosin A have been prepared which possess substantially improved antibacterial activity. An example of such an agent is 5''''-amino-5''''deoxyambutyrosin A.
Inventors
- 👤 Takayuki Naito
- 👤 Susumu Nakagawa
- 👤 Soichiro Toda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:05
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/22; C07H15/222; C07H15/226; C07H15/228; C07H15/23; A; A61; A61P; A61P31/00; A61P31/04; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/835
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
9 words
The compound of claim 1 in which R is
Claim 4
Dependent Claim
23 words
The compound of claim 1 in which R is H, R1 is NH2 and X is H; or a pharmaceutically acceptable salt thereof.
Claim 5
Dependent Claim
28 words
The compound of claim 1 in which R is H, R1 is NH2 and X is H; or a mono-, di-, tri-, tetra- or penta sulfate salt thereof.
Claim 6
Dependent Claim
8 words
A monohydrate of the compound of claim 4.
References Cited (Backward Citations)
US3792037A
Cited
US3784541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |