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US3992379A
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4-Alkyldioxyalkylene-5-benzylpyrimidines
Assignee: Heumann Ludwig and Co GmbH
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Filing: 1974-03-15
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Granted: 1976-11-16
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Expires: 1994-03-15
Abstract
Abstract Bactericidal 4'-alkyldioxyalkylene-5-benzylpyrimidines, process for their production, and pharmaceutical compositions or formulations thereof, containing compounds of the general formula: ##SPC1## Wherein R 1 is an alkyl group containing from 1 to 3 carbon atoms, R is an atom of hydrogen, an atom of halogen, or an alkyl or alkoxy group containing from 1 to 3 carbon atoms, and n is an integer of from 1 to 3, Exhibit excellent bactericidal activity and low toxicity and are suitable for oral administration.
Inventors
- 👤 Walter Otto Liebenow
- 👤 Jaroslav Prikryl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:34
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495; A61K31/505; A61K31/63; A61P; A61P31/00; A61P31/04; C07D239/46; C07D239/47; C07D239/48; C07D239/49
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
47 words
A 2,4-diamino-5-(4'-alkyldioxyalkylene-benzyl)-pyrimidine having the formula ##SPC9## wherein R 1 is an alkyl group having from 1 to 3 carbon atoms, R is an alkoxy group having from 1 to 3 carbon atoms, and n is an integer of from 1 to 3, and pharmaceutically acceptable salts thereof.
Claim 2
Dependent Claim
47 words
A 2,4-diamino-5-(4'-alkyldioxyalkylene-benzyl)-pyrimidine having the formula ##SPC9## wherein R 1 is an alkyl group having from 1 to 3 carbon atoms, R is an alkoxy group having from 1 to 3 carbon atoms, and n is an integer of from 1 to 3, and pharmaceutically acceptable salts thereof.
Claim 3
Dependent Claim
16 words
A pyrimidine according to claim 1, said pyrimidine being 2,4-diamino-5-(3',5'-dimethoxy-4'-methyldioxy-ethylenebenzyl)-pyrimidine and the pharmaceutically acceptable salts thereof.
Claim 4
Dependent Claim
16 words
A pyrimidine according to claim 1, said pyrimidine being 2,4-diamino-5-(3'-5'-dimethoxy-4'-methyldioxymethylenebenzyl)-pyrimidine and the pharmaceutically acceptable salts thereof.
References Cited (Backward Citations)
US2909522A
Cited
US3671564A
Cited
US3670077A
Cited
US3849407A
Cited
US3819629A
Cited
US3692787A
Cited
US3772289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |