US4078086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthraquinone-bis-amidines and process for preparing them
Assignee: Hoechst AG
•
Filing: 1976-05-12
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Granted: 1978-03-07
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Expires: 1996-05-12
Abstract
Abstract Novel compounds of anthraquinone-bis-amidines are prepared which are suitable for combating diseases caused by trichomonads.
Inventors
- 👤 Erhardt Winkelmann
- 👤 Wolfgang Raether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:48
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/195; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D223/00; C07D223/02; C07D223/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
48 words
An anthraquinone-bis-amidine of the formula: ##STR10## in which R 1 , R 2 and R 3 may be identical or different from each other and each represents hydrogen or alkyl of 1 to 4 carbon atoms, as well as an addition salt thereof with a physiologically acceptable acid.
Claim 2
Dependent Claim
48 words
An anthraquinone-bis-amidine of the formula: ##STR10## in which R 1 , R 2 and R 3 may be identical or different from each other and each represents hydrogen or alkyl of 1 to 4 carbon atoms, as well as an addition salt thereof with a physiologically acceptable acid.
Claim 3
Dependent Claim
10 words
A compound as claimed in claim 1, which is 2,6-bis-(dimethylamino-methylene-imino)-anthraquinone.
Claim 4
Dependent Claim
10 words
A compound as claimed in claim 1, which is 2,6-bis-(dimethylamino-1-ethylene-imino)-anthraquinone.
Claim 5
Dependent Claim
10 words
A compound as claimed in claim 1, which is 2,6-bis-(diethylamino-1-ethylene-imino)-anthraquinone.
Claim 6
Dependent Claim
10 words
A compound as claimed in claim 1, which is 2,6-bis-(dimethylamino-1-propylene-imino)-anthraquinone.
Claim 7
Dependent Claim
24 words
A pharmaceutical composition containing a compound as defined in claim 1 or a salt thereof, in admixture or conjunction with a pharmaceutically acceptable carrier.
Claim 8
Dependent Claim
25 words
Method for combating trichomonads which comprises administering to a patient an effective amount of a compound as defined in claim 1 or a salt thereof.
References Cited (Backward Citations)
US3184482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |