US4232154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbocyclic analogs of cytosine nucleosides exhibiting antiviral and antineoplasticactivity
Assignee: Government of the United States of America
•
Filing: 1979-07-17
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Granted: 1980-11-04
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Expires: 1999-07-17
Abstract
Abstract Novel compounds are disclosed which are carbocyclic analogs of cytosine nucleosides in which the pentose moiety of the nucleoside is replaced by a cyclopentane ring. The novel compounds exhibit antiviral activity, and certain of them also exhibit antineoplastic activity against the L 1210 mouse leukemia test system.
Inventors
- 👤 Y. Fulmer Shealy
- 👤 C. Allen O'Dell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:51
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/34; C07D239/36; C07D239/46; C07D239/47; C07D239/52; C07D239/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A compound having the formula ##STR7## wherein Y is hydrogen or hydroxy.
Claim 2
Dependent Claim
12 words
A compound having the formula ##STR7## wherein Y is hydrogen or hydroxy.
References Cited (Backward Citations)
US3040026A
Cited
DE2038807A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |