US3635946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N1-(2'-furanidyl)-derivatives of 5-substituted uracils
Assignee: Individual
•
Filing: 1969-07-22
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Granted: 1972-01-18
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Expires: 1989-07-22
Abstract
Abstract NOVEL COMPOUNDS OF THE FORMULA 2,6-DI(O=),3-R2,5-R3-1,2,3,6-TETRAHYDROPYRIMIDINE WHEREIN R2 IS A 2-FURANIDYL GROUP AND R3 IS METHYL, TRIHALOMETHYL OR HALOGEN ARE PREPARED BY REACTING THE MERCURY OR BIS-TRIMETHYLSILYL DERIVATIVES OF THE CORRESPONDING URACILS WITH 2-CHLOROFURANIDINE. THE 2-PYRANIDYL DERIVATIVE IS PREPARED IF 2-CHLOROPYRANIDINE IS USED INSTEAD. THE COMPOUNDS ARE USEFUL IN TREATING SARCOMA 180 AND WALKER CARCINOSARCOMA IN MICE.
Inventors
- 👤 Solomon Aronovich Giller
- 👤 Regina Abramovna Zhuk
- 👤 Marger Jurievich Lidak
- 👤 Aina Avgustovna Zidermane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:20
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/04
Claims Analysis
Total Claims: 0
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |