Patent US3853845A successfully refreshed from Google Patents.
US3853845A
Expired / Lapsed
US
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5-n-aminoacyl-5-aminouridines
Assignee: Viratek Inc
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Filing: 1971-08-18
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Granted: 1974-12-10
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Expires: 1991-08-18
Abstract
Abstract Described herein are a novel class of compounds useful as antiviral agents, i.e., 5-N-aminoacyl-5-aminouridines and 5-N-dipeptidyl-5-aminouridines. Also described are a variety of novel synthetic routes by which the subject compounds may be obtained, variously including reaction of 5-aminouridine or its glycosyl hydroxyl-blocked analog with appropriately amino-blocked amino acids or amino acid halides.
Inventors
- 👤 G Ivanovics
- 👤 R Rousseau
- 👤 R Robins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
1 words
5-N-A-(L-AMINOACYL)-5-AMINOURIDINE.
Claim 2
Dependent Claim
1 words
5-N-A-(L-AMINOACYL)-5-AMINOURIDINE.
Claim 3
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-phenylalanyl.
Claim 4
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-alanyl.
Claim 5
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-leucyl.
Claim 6
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-glycyl.
Claim 7
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-lysyl.
Claim 8
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-asparaginyl.
Claim 9
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-glutaminyl.
Claim 10
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-aspartyl.
Claim 11
Dependent Claim
12 words
A compound according to claim 1 whose amino acid moiety is L-ornithyl.
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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |