US4097525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatic amidines as antiviral agents in animals
Assignee: Pfizer Inc
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Filing: 1977-10-13
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Granted: 1978-06-27
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Expires: 1997-10-13
Abstract
Abstract Novel [N,N-di(higher alkyl)aminomethyl]benzamidine and substituted compounds such as [N,N-di(higher alkyl)aminomethyl]-N-(2-propyl)-benzamidine and [N,N-di(higher alkyl)aminomethyl]-N-(p-hydroxyphenyl)-benzamidine and their non-toxic acid addition salts are useful for combating viral infections in vertebrate animals.
Inventors
- 👤 Allen R. Kraska
- 👤 Rodney C. Schnur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:03
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/75; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/44; C07D277/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
34 words
A compound of the structure ##STR40## and the non-toxic acid addition salts thereof wherein R 1 and R 2 are each alkyl of from 12 to 24 carbon atoms; and R 3 is dimethylamino.
Claim 2
Dependent Claim
34 words
A compound of the structure ##STR40## and the non-toxic acid addition salts thereof wherein R 1 and R 2 are each alkyl of from 12 to 24 carbon atoms; and R 3 is dimethylamino.
Claim 3
Dependent Claim
14 words
A compound of claim 1 wherein R 1 and R 2 are normal alkyl.
Claim 4
Dependent Claim
18 words
A compound of claim 2 wherein R 1 and R 2 have an equal number of carbon atoms.
Claim 5
Dependent Claim
13 words
A compound of claim 1 wherein R 1 and R 2 are n-hexadecyl.
Claim 6
Dependent Claim
13 words
A compound of claim 1 wherein R 1 and R 2 are n-octadecyl.
Claim 7
Dependent Claim
15 words
A compound of claim 1 wherein the benzene ring of said structure is meta substituted.
Claim 8
Dependent Claim
23 words
The compound of claim 1 wherein R 1 and R 2 are n-hexadecyl and the benzene ring of said structure is meta substituted.
References Cited (Backward Citations)
US3906044A
Cited
US3932492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |