US2949449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of 3, 5-diaroyl-2-deoxy-d-ribofuranosyl ureas
Assignee: F Hoffmann La Roche AG
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Filing: 1959-01-14
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Granted: 1960-08-16
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Expires: 1979-01-14
Abstract
No abstract record available.
Inventors
- 👤 Hoffer Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:12
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/08; C07H13/12; C07H15/00; C07H15/02; C07H15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS OF MAKING 3,5-DIAUOYL-2-DEOXY-D-RIBO FURANOSYL HALIDE WHICH COMPRISES REACTING 3,5-DIAROYL-1 METHYL-2-DEOXY-D-RIBOFURANOSIDE WITH ANHYDROUS HYDROGEN HALIDE, WHEREIN THE HALIDE IS SELECTED FROM THE GROUP CONSISTING OF CHOLIDE AND BROMIDE AND WHEREIN THAT PORTION OF THE AROYL GROUP WHICH IS EXCLUSIVE OF THE CARBON FUNCTION IS A RADICAL CONTAINING NOT MORE THAN TEN CARBON ATOMS SELECTED FROM THE CLASS CONSISTING OF MONOCYCLIC ARYL HYDROCARBON RADICALS AND NEGATIVELY SUBSTITUTED MONOCYCLIC ARYL HYDROCARBON RADICALS.
Claim 2
Dependent Claim
57 words
A PROCESS OF MAKING 1-(B-(LOWER ALKOXY)-X-METHYLACRYLOYL)-3-(3,5-DIAROYL-2-DEOXY-D-RIBOFURANOSYL) UREA WHICH COMPRISES REACTING (3,5-DIAROYL-2-DEOXY-DRIBOFURANOSYL)UREA WITH B-(LOWER ALKOXY)-X-METHYLACRYLOYL HALIDE, WHEREIN THAT PORTION OF THE AROYL GROUP WHICH IS EXCLUSIVE OF THE CARBONYL FUNCTION IS A RADICA CONTAINING NOT MORE THAN TEN CARBON ATOMS SELECTED FROM THE CLASS CONSISTING OF MONOCYCLIC ARYL HYDROCARBON RADICALS AND NEGATIVELY SUBSTITUTED MONOCYCLIC ARYL HYDRO CARBON RADICALS.
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |