US3590049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2'-acyl-2-aminoxyacetanilide having 2-amino function protected
Assignee: F Hoffmann La Roche AG
•
Filing: 1968-10-18
•
Granted: 1971-06-29
•
Expires: 1988-10-18
Abstract
Abstract 2''-ACYL-2-AMINOXYACETANILIDE HAVING THE 2-AMINO FUNCTION PROTECTED AND SUBSTITUTED DERIVATIVES THEREOF. THESE COMPOUNDS ARE INTERMEDIATES IN THE PREPARATION OF 4,1,5BENZOXADIAZOCIN-2-ONES (A) WHICH COMPOUNDS ARE CONVERTIBLE INTO 3-HYDROXY-1,4-BENZODIAZEPIN-2-ONES (B). BOTH COMPOUND A AND COMPOUND B ARE ACTIVE AS ANTICONVULSANTS, MUSCLE RELAXANTS AND SEDATIVE AGENTS.
Inventors
- 👤 Arthur Stempel
- 👤 Leo Henryk Sternbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:27
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |