US4762648A
Expired / Lapsed
US
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Monofunctional and bisfunctional anthraquinone-(oxy-2,3-oxidopropanes), processes for their preparation, and their use as drugs
Assignee: Hoechst AG
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Filing: 1984-08-29
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Granted: 1988-08-09
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Expires: 2004-08-29
Abstract
Abstract The present invention relates to a novel mono-functional and bis-functional anthraquinone-(oxy-2,3-oxido-propanes) and to a process for their preparation. The compounds according to the invention are useful as intermediates in the preparation of drugs possessing a β-receptor blocker action and as crosslinking agents in the preparation of polymers, and moreover exhibit cytostatic activity.
Inventors
- 👤 Ulrich Stache
- 👤 Hans P. Kraemer
- 👤 Hans-Harald Sedlacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:38
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; A; A61; A61P; A61P35/00; C07D303/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A compound of the formula I ##STR32## where R 1 and R 1 ' are identical or different and are hydrogen, hydroxyl or the radical ##STR33## R 2 and R 2 ' are identical or different and are hydrogen or one or more hydroxyl, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -alkanoyloxy, aryloxy, Ar--C 1 -C 4 -alkoxy, nitro groups or halogen atoms, and R 3 and R 3 ' are different and are hydrogen or the radical ##STR34##
Claim 2
Dependent Claim
91 words
A compound of the formula I ##STR32## where R 1 and R 1 ' are identical or different and are hydrogen, hydroxyl or the radical ##STR33## R 2 and R 2 ' are identical or different and are hydrogen or one or more hydroxyl, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -alkanoyloxy, aryloxy, Ar--C 1 -C 4 -alkoxy, nitro groups or halogen atoms, and R 3 and R 3 ' are different and are hydrogen or the radical ##STR34##
Claim 3
Dependent Claim
1 words
1-Hydroxy-anthraquinone-4-(oxy-2,3-oxido-propane).
Claim 4
Dependent Claim
1 words
1-Hydroxy-anthraquinone-4-(oxy-2,3-oxido-propane).
Claim 5
Dependent Claim
1 words
Anthraquinone-1,4-bis-(oxy-2,3-oxido-propane).
Claim 6
Dependent Claim
1 words
Anthraquinone-1,4-bis-(oxy-2,3-oxido-propane).
Claim 7
Dependent Claim
1 words
Anthraquinone-2,6-bis-(oxy-2,3-oxido-propane).
Claim 8
Dependent Claim
1 words
Anthraquinone-2,6-bis-(oxy-2,3-oxido-propane).
Claim 9
Dependent Claim
1 words
Anthraquinone-1,8-bis-(oxy-2,3-oxido-propane).
Claim 10
Dependent Claim
1 words
Anthraquinone-1,8-bis-(oxy-2,3-oxido-propane).
Claim 11
Dependent Claim
19 words
A pharmaceutical composition comprising an effective amount of a compound of the formula I as recited in claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-09 | 1992-02-08 | 1992-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-09 | 1996-02-08 | 1996-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-09 | 2000-02-08 | 2000-08-09 | $7700.00 | Window Closed / Lapsed |