Patent US4569934A successfully refreshed from Google Patents.
US4569934A
Expired / Lapsed
US
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Imidazo[1,2-b]pyridazines
Assignee: Wyeth Holdings LLC
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Filing: 1984-10-09
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Granted: 1986-02-11
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Expires: 2004-10-09
Abstract
Abstract This invention concerns novel imidazo[1,2-b]-pyridazines and their use as agents for treating anxiety.
Inventors
- 👤 Daniel B. Moran
- 👤 Dennis W. Powell
- 👤 Jay D. Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:15
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D241/00; C07D241/02; C07D241/10; C07D241/14; C07D241/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
47 words
A compound of the formula: ##STR7## wherein R 1 is selected from the group consisting of hydrogen and lower alkyl having from 1 to 3 carbon atoms; and R 2 is selected from the group consisting of 3-pyridinyl and [3-(trifluoromethyl)phenyl] and the pharmacologically acceptable acid-addition salts thereof.
Claim 2
Dependent Claim
47 words
A compound of the formula: ##STR7## wherein R 1 is selected from the group consisting of hydrogen and lower alkyl having from 1 to 3 carbon atoms; and R 2 is selected from the group consisting of 3-pyridinyl and [3-(trifluoromethyl)phenyl] and the pharmacologically acceptable acid-addition salts thereof.
Claim 3
Dependent Claim
7 words
The compound, according to claim 1, 3-methyl-6-[3-(trifluoromethyl)phenyl]imidazo[1,2,-b]pyridazine.
Claim 4
Dependent Claim
7 words
The compound, according to claim 1, 3-methyl-6-(3-pyridinyl)imidazo[1,2,-b]pyridazine.
Claim 5
Dependent Claim
7 words
The compound, according to claim 1, 2-methyl-6-[3-(trifluoromethyl)phenyl]imidazo[1,2-b]pyridazine.
Claim 6
Dependent Claim
7 words
The compound, according to claim 1, 2-ethyl-6-[3-(trifluoromethyl)phenyl]imidazo[1,2-b]pyridazine.
Claim 7
Dependent Claim
7 words
The compound, according to claim 1, 6-[3-(trifluoromethyl)phenyl]imidazo[1,2,-b]pyridazine.
Claim 8
Dependent Claim
7 words
The compound, according to claim 1, 6-(3-pyridinyl)imidazo[1,2-b]pyridazine.
Claim 9
Dependent Claim
7 words
The compound, according to claim 1, 2-methyl-6-(3-pyridinyl)imidazo[1,2-b]pyridazine.
Claim 10
Dependent Claim
7 words
The compound, according to claim 1, 3-ethyl-6-(3-pyridinyl)imidazo[1,2-b]pyridazine.
Claim 11
Dependent Claim
7 words
The compound, according to claim 1, 3-propyl-6-[3-(trifluoromethyl)phenyllimidazo[1,2-b]pyridazine.
Claim 12
Dependent Claim
7 words
The compound, according to claim 1, 2-propyl-6-[3-(trifluoromethyl)phenyl]imidazo[1,2-b]pyridazine.
Claim 13
Dependent Claim
8 words
The compound, according to claim 1, 2-methyl-6-[3-(trifluoromethyl)phenyl]imidazo[1,2-b]pyridazine, hydrobromide.
Claim 14
Dependent Claim
30 words
A method of meliorating anxiety in a mammal which comprises administering internally to said mammal a therapeutically effective amount of a compound of the formula as recited in claim 1.
Claim 15
Dependent Claim
28 words
An antianxiety composition of matter in dosage unit form which comprises a compound of the formula as recited in claim 1 in association with a pharmaceutically acceptable carrier.
Claim 16
Dependent Claim
30 words
An antianxiety composition of matter in dosage unit form which comprises a compound of the formula as recited in claim 1 in association with a pharmaceutically acceptable carrier and adjuvant.
References Cited (Backward Citations)
FR57298E
Cited
US3489755A
Cited
US3711613A
Cited
US3828041A
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US3931175A
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US4230705A
Cited
US4353903A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |