Patent US3984426A successfully refreshed from Google Patents.
US3984426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(1-Alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl compounds
Assignee: Hoechst AG
•
Filing: 1974-11-27
•
Granted: 1976-10-05
•
Expires: 1994-11-27
Abstract
Abstract (1-ALKYL-5-NITRO-IMIDAZOLYL-2-ALKYL)-HETEROARYL COMPOUNDS AND A 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
2026-11-05 05:10
CPC Classifications
C; C07; C07D; C07D417/00; C07D417/02; C07D417/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
79 words
A (1-alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl sulfide, sulfoxide or sulfone of the formula ##SPC4## in which R 1 is methyl or ethyl, R 2 is hydrogen or methyl, A is a sulfur bridge (--S--), a sulfoxide group (--SO--) or a sulfone group (--SO 2 --) and B is one of the following rings: ##SPC5## which may be linked in the manner indicated to the sulfur bridge, to the sulfoxide or sulfone group, and wherein R 3 is hydrogen, methyl, cyano, nitro or amino.
Claim 2
Dependent Claim
79 words
A (1-alkyl-5-nitro-imidazolyl-2-alkyl)-heteroaryl sulfide, sulfoxide or sulfone of the formula ##SPC4## in which R 1 is methyl or ethyl, R 2 is hydrogen or methyl, A is a sulfur bridge (--S--), a sulfoxide group (--SO--) or a sulfone group (--SO 2 --) and B is one of the following rings: ##SPC5## which may be linked in the manner indicated to the sulfur bridge, to the sulfoxide or sulfone group, and wherein R 3 is hydrogen, methyl, cyano, nitro or amino.
Claim 3
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(1,3-thiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 4
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(1,3,4-thiadiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 5
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(5-methyl-1,3-thiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 6
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(5-nitro-1,3-thiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 7
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(5-methyl-1,3,4-oxadiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 8
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(5-methyl-1,3,4-thiadiazolyl-2-thiomethyl)-5-nitro-imidazole.
Claim 9
Dependent Claim
8 words
The compound of claim 1, which is 1-methyl-2-(5-amino-1,3,4-thiadiazolyl-2-thiomethyl)-5-nitro-imidazole.
References Cited (Backward Citations)
US3813401A
Cited
US3853893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |