Patent US3917596A successfully refreshed from Google Patents.
US3917596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9-(14-Phenyl-piperazino)-alkyl)-adenines
Assignee: Roche Diagnostics GmbH
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Filing: 1973-09-04
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Granted: 1975-11-04
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Expires: 1993-09-04
Abstract
Abstract A 9-((4-phenyl-piperazino)-alkyl)-adenine of the formula wherein A is a lower alkylene radical, and R is a hydrogen or halogen atom or a lower alkoxy radical, or a salt thereof with a pharmacologically compatible acid, which compounds are characterized by marked anti-edematous activity as well as by activity in reducing capillary permeability.
Inventors
- 👤 Werner Winter
- 👤 Max Thiel
- 👤 Kurt Stach
- 👤 Wolfgang Schaumann
- 👤 Androniki Roesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:55
CPC Classifications
C; C07; C07D; C07D473/00; C07D473/26; C07D473/32; C07D473/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
5 words
A 9-(4-PHENYL-PIPERAZINO)-ALKYL-ADENINE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A 9-(4-PHENYL-PIPERAZINO)-ALKYL-ADENINE OF THE FORMULA
Claim 3
Dependent Claim
29 words
A compound according to claim 1 wherein A has 2 to 5 carbon atoms and R is hydrogen, fluorine, chlorine, bromine or alkoxy of 1 to 5 carbon atoms.
Claim 4
Dependent Claim
27 words
A compound according to claim 1 wherein A has 3 or 4 carbon atoms and R is hydrogen, chlorine or alkoxy of 1 to 3 carbon atoms.
Claim 5
Dependent Claim
20 words
A compound according to claim 1 wherein such compound is 9-(3-(4-phenyl-piperazino)-propyl)-adenine or a salt thereof with a pharmacologically compatible acid.
Claim 6
Dependent Claim
20 words
A compound according to claim 1 wherein such compound is 9-(3-(4-phenyl-piperazino)-2-methyl-propyl)-adenine or a salt thereof with a pharmacologically compatible acid.
Claim 7
Dependent Claim
20 words
A compound according to claim 1 wherein such compound is 9-(3-(4-(2-chlorophenyl)-piperazino)-propyl)-adenine or a salt thereof with a pharmacologically compatible acid.
Claim 8
Dependent Claim
20 words
A compound according to claim 1 wherein such compound is 9-(3-(4-(3-chlorophenyl)-piperazino)-propyl)-adenine or a salt thereof with a pharmacologically compatible acid.
Claim 9
Dependent Claim
20 words
A compound according to claim 1 wherein such compound is 9-(3-(4-(4-chlorophenyl)-piperazino)-propyl)-adenine or a salt thereof with a pharmacologically compatible acid.
Claim 10
Dependent Claim
19 words
A compound according to claim 1 wherein such compound is 9-(3-(4-(2-methoxy-phenyl)-piperazino)-propyl)-adenine or a salt thereof with pharmacologically compatible acid.
References Cited (Backward Citations)
BE621979R
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |