US3928375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthelmintically active 2-carbalkoxy-amino-benzimidazolyl-5(6)-amino-phenyl ethers
Assignee: Hoechst AG
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Filing: 1974-09-23
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Granted: 1975-12-23
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Expires: 1994-09-23
Abstract
Abstract The invention describes novel 2-carbalkoxy-amino-benzimidazolyl5(6)-amino-phenyl ether of the formula (I) wherein R1 is alkyl having 1 to 4 carbon atoms, R2, in each case independently from one another, represents hydrogen, alkyl having 1 to 4 carbon atoms, hydroxyl, alkoxy having 1 to 4 carbon atoms, halogen or trifluoromethyl, n represents the integers 0, 1 or 2 and X represents oxygen or sulfur, the salts of such compounds with physiologically tolerable salts and their preparation. These compounds are chemotherapeutics and act particularly against helminths in humans and animals.
Inventors
- 👤 Dieter Duwel
- 👤 Reinhard Kirsch
- 👤 Heinz Loewe
- 👤 Josef Urbanietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/30; C07D235/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
6 words
A 2-CARBALKOXY-AMINO-BENZIMIDAZOLY-5(6)-AMINOPHENYL ETHER OF THE FORMULA
Claim 2
Dependent Claim
6 words
A 2-CARBALKOXY-AMINO-BENZIMIDAZOLY-5(6)-AMINOPHENYL ETHER OF THE FORMULA
Claim 3
Dependent Claim
11 words
The compound of claim 1 which is 5-(4-aminophenoxy)-2-benzimidazolyl-carbamic acid methyl ester.
Claim 4
Dependent Claim
11 words
The compound of claim 1 which is 5-(4-aminophenylthio)-2-benzimidazolyl-carbamic acid methyl ester.
Claim 5
Dependent Claim
11 words
The compound of claim 1 which is 5-(3-aminophenoxy)-2-benzimidazolyl-carbamic acid methyl ester.
Claim 6
Dependent Claim
11 words
The compound of claim 1 which is 5-(2-methyl-5-aminophenoxy)-2-benzimidazolyl-carbamic acid methyl ester.
Claim 7
Dependent Claim
11 words
The compound of claim 1 which is 5-(2-chloro-4-aminophenoxy)-2-benzimidazolyl-carbamic acid methyl ester.
Claim 8
Dependent Claim
11 words
The compound of claim 1 which is 5-(3-chloro-4-aminophenoxy)-2-benzimidazolyl-carbamic acid methyl ester.
References Cited (Backward Citations)
US3574845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |