US3631105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetoxymethyl acetamides and acetamidoacetamides and their preparation
Assignee: Wyeth LLC
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Filing: 1970-06-08
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Granted: 1971-12-28
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Expires: 1990-06-08
Abstract
Abstract A PROCESS IS DISCLOSED IN WHICH AN N((4-OXO-4H-3,1BENZONXAZIN-2-YL) ACYLOXYMETHYL) LOWER FATTY ACID AMIDE IS PREPARED BY A REACTION OF AN ACID ANHYDRIDE WITH A SUBSTITUTED AMINOACETYL ANTHRANILIC ACID. THE REACTION PRODUCT IS THEN TREATED WITH A COMPOUND POSSESING AN ACTIVE HYDROGEN AND A NUCLEOPHILIC GROUP, I.E. AND AMINE, WHEREBY THERE IS FORMED A 2-CARBAMYL-ACETANILIDE IN WHICH ONE NUCLEOPHILIC GROUP ATTACHES TO THE METHYLENE RADICAL OF THE ACETYL GROUP AND ANOTHER TO THE CARBONYL GROUP OF THE ACETANILIDE. THE COMPOUNDS OF THE INVENTION ARE CENTRAL NERVOUS SYSTEM DEPRESSANTS, RESULTING IN A GENERALLY RELAXING OR SEDATIVE EFFECT.
Inventors
- 👤 Stanley C Bell
- 👤 Ronald J Mccaully
- 👤 Scott J Childress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:20
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/006
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |