US3992397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(1-Alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl compounds and process for their manufacture
Assignee: Hoechst AG
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Filing: 1974-12-12
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Granted: 1976-11-16
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Expires: 1994-12-12
Abstract
Abstract New (1-alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl compounds and process for their manufacture are described. The new compounds are well compatible and are effective against bacteria and protozoa as well as against fungi. They are especially active against trichomonads and amebae.
Inventors
- 👤 Erhardt Winkelmann
- 👤 Wolfgang Raether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/94
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
55 words
A (1-alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl sulfide, sulfoxide or sulfone of the formula ##SPC8## in which R 1 stands for methyl or ethyl, R 2 stands for hydrogen or methyl, R 3 stands for hydrogen, alkyl of 1 to 4 carbon atoms, phenyl, tolyl or chlorophenyl, and A stands for sulfur (--S--), sulfoxide (--SO--) or sulfone (--SO 2 --).
Claim 2
Dependent Claim
55 words
A (1-alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl sulfide, sulfoxide or sulfone of the formula ##SPC8## in which R 1 stands for methyl or ethyl, R 2 stands for hydrogen or methyl, R 3 stands for hydrogen, alkyl of 1 to 4 carbon atoms, phenyl, tolyl or chlorophenyl, and A stands for sulfur (--S--), sulfoxide (--SO--) or sulfone (--SO 2 --).
Claim 3
Dependent Claim
15 words
A compound as defined in claim 1 in which R 3 is methyl or ethyl.
Claim 4
Dependent Claim
10 words
A compound as claimed in claim 1, which is 1-methyl-2-(1-methyl-1,3,4,5-tetrazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 5
Dependent Claim
10 words
A compound as claimed in claim 1, which is 1-methyl-2-(1-phenyl-1,3,4,5-tetrazolyl-2-thiomethyl)-5-nitro-imidazole.
References Cited (Backward Citations)
US3574195A
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 |