US4487925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rebeccamycin and process for its preparation
Assignee: Bristol Myers Co
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Filing: 1983-01-28
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Granted: 1984-12-11
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Expires: 2003-01-28
Abstract
Abstract A novel antitumor agent designated herein as rebeccamycin is produced by fermentation of Nocardia aerocolonigenes (ATCC 39243). Rebeccamycin and its 5'-N-methyl and 5',2",3",6"-tetraacetate derivatives exhibit activity against experimental animal tumor systems.
Inventors
- 👤 Donald E. Nettleton, Jr.
- 👤 James A. Bush
- 👤 William T. Bradner
- 👤 Terrence W. Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/044; C12P; C12P1/00; C12P1/02; A; A61; A61P; A61P31/00; A61P31/04; A61P35/00; A61P35/02; C12P19/00; C12P19/26; C12P19/28; C12R; C12R2001/00; C12R2001/01; C12R2001/365
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
7 words
The compound rebeccamycin having the formula ##STR4##
Claim 2
Dependent Claim
7 words
The compound rebeccamycin having the formula ##STR4##
Claim 3
Dependent Claim
12 words
The compound rebeccamycin 5',2",3",6"-tetraacetate having the formula ##STR5## wherein Ac represents ##STR6##
Claim 4
Dependent Claim
12 words
The compound rebeccamycin 5',2",3",6"-tetraacetate having the formula ##STR5## wherein Ac represents ##STR6##
Claim 5
Dependent Claim
7 words
The compound 5'-N-methylrebeccamycin having the formula ##STR7##
Claim 6
Dependent Claim
7 words
The compound 5'-N-methylrebeccamycin having the formula ##STR7##
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |