US3711495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isoxazalin-3-yl-substituted-5-nitroimidazoles
Assignee: Merck and Co Inc
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Filing: 1970-01-07
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Granted: 1973-01-16
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Expires: 1990-01-07
Abstract
Abstract Substituted nitroimidazoles having a 1-alkyl or hydroxyalkyl substituent; a 5-nitro substituent; and a 2-substituent, the latter being a Delta 2-4,5-disubstituted-isoxazoline. The 4,5substitution on the isoxazolinemoiety is a saturated alkyl ring structure. These compounds have anti-bacterial and anti-protozoal activity against human and animal trypanosomiasis and trichomoniasis.
Inventors
- 👤 P Kulsa
- 👤 C Rooney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:21
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/04; C07D233/00; C07D233/54; C07D233/66; C07D233/91; C07D233/92; C07D233/94; C07D233/95; C07D495/00; C07D495/02; C07D495/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
9 words
The compound of claim 1 which is exo-2-(3a,4,5,6,7,7a-hexahydro-4,7-methano-1,2-benz-isoxazol-3-yl)-1-methyl -5-nitroimidazole.
Claim 2
Dependent Claim
4 words
The compound 1-methyl-2-(3a,4,5,6,7,8,9,9a-octahydrocyclooct(d)-isoxazol-3-yl)-5 -nitroimidazole.
Claim 3
Dependent Claim
3 words
The compound 1-methyl2-(3a,4,5,6,7,7a-hexahydro-1,2-benz-isoxazol-3-yl)-5-nitroimdazole.
References Cited (Backward Citations)
US3472857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |