Patent US3199498A successfully refreshed from Google Patents.
US3905979A
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Diazabicyclooctanes and diazabicycloheptanes
Assignee: SRI International Inc
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Filing: 1974-05-09
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Granted: 1975-09-16
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Expires: 1994-05-09
Abstract
Abstract Twelve analogs of diethylcarbamazine as prepared by acylation of 3- and 8-methyl-3,8-diazabicyclo(3.2.1)octane, 2-methyl-2,5diazabicyclo(2.2.2)octane, and 2-methyl-2,5diazabicyclo(2.2.1)heptane with diethylcarbamyl chloride, ethyl chloroformate, ethyl isocyanate, and cyclohexanecarbonyl chloride. These compounds are formally derived from diethylcarbamazine in possessing two- or one-carbon bridges over the piperazine ring. The compounds have utility as antifilarial agents and as bronchodilators.
Inventors
- 👤 David W Henry
- 👤 Priscilla A Sturm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:54
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/08; C07D207/00; C07D207/02; C07D207/04; C07D207/10; C07D207/16; C07D487/00; C07D487/02; C07D487/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE STRUCTURE
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE STRUCTURE
Claim 3
Dependent Claim
17 words
The compound of claim 1 which is 2-(N,N-Diethylcarbamyl-5-methyl-2,5-diazabicyclo(2.2.2)octane; together with the acid addition salts of said compound.
Claim 4
Dependent Claim
17 words
The compound of claim 1 which is 2-carbethoxy-5-methyl-2,5-diazabicyclo(2.2.2)octane; together with the acid addition salts of said compound.
Claim 5
Dependent Claim
17 words
The compound of claim 1 which is 2-(N-ethylcarbamyl)-5-methyl-2,5-diazabicyclo(2.2.2)octane; together with the acid addition salts of said compound.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |