US3887552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-Oxo-2,3-dihydro-imidazo(1,2-a)-s-triazines
Assignee: C.H. Boehringer Sohn AG and Co KG
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Filing: 1974-03-12
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Granted: 1975-06-03
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Expires: 1994-03-12
Abstract
Abstract Compounds of the formula WHEREIN R1 is phenyl or mono-, di- or tri-substituted phenyl, THE SUBSTITUENTS BEING EACH HALOGEN, METHYL, METHOXY OR TRIFLUOROMETHYL, AND R2 is hydrogen, phenyl or halo-phenyl; THE COMPOUNDS ARE USEFUL AS ANTIDEPRESSANTS.
Inventors
- 👤 Helmut Stahle
- 👤 Herbert Koppe
- 👤 Werner Kummer
- 👤 Wolfgang Hoefke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:05
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/53; A61P; A61P1/00; A61P1/04; A61P25/00; A61P25/04; A61P25/24; A61P25/26; A61P3/00; A61P7/00; A61P7/10; A61P9/00; A61P9/12; C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
A compound of the formula
Claim 4
Dependent Claim
5 words
A compound of the formula
Claim 5
Dependent Claim
21 words
A compound of claim 1, wherein R1 is phenyl, methyl-chloro-phenyl, dichloro-phenyl, dichloro-bromo-phenyl or trifluoromethyl-phenyl, and R2 is hydrogen, phenyl or chloro-phenyl.
Claim 6
Dependent Claim
9 words
The compound of claim 2 which is 8-(2'',6''-dichloro-phenyl)-7-(p-chloro-phenyl)-5-oxo-2,3-dihydro-imidazo(1,2 -a)s-triazine.
Claim 7
Dependent Claim
9 words
The compound of claim 2 which is 8-(2'', 6''-dichloro-phenyl)-2,3-dihydro-5-oxo-imidazo(1,2-a)s-triazine.
Claim 8
Dependent Claim
9 words
The compound of claim 2 which is 7-(p-chloro-phenyl)-8-(2''-chloro-6''-methyl-phenyl)-5-oxo-2,3-dichloro -imidazo(1,2-a)s-triazine.
Claim 9
Dependent Claim
9 words
The compound of claim 2 which is 7-(p-chloro-phenyl)-8-(2'', 6''-dichloro-4''-bromo-phenyl)-5-oxo-2,3-dihydro-imidazo(1,2-a)s-triazine.
Claim 10
Dependent Claim
9 words
The compound of claim 2 which is 7-(p-chloro-phenyl)-8-(2''-chloro-4''-methyl-phenyl)-5-oxo-2,3-dihydro -imidazo(1,2-a)s-triazine.
Claim 11
Dependent Claim
9 words
The compound of claim 2, which is 7-phenyl-8-(2'',6''-dichloro-phenyl)-5-oxo-2,3-dihydro-imidazo(1,2-a)s -triazine.
Claim 12
Dependent Claim
9 words
The compound of claim 2 which is 7-(m-chloro-phenyl)-8-(2'', 6''-dichloro-phenyl)-5-oxo-2,3-dihydro-imidazo(1,2-a)s-triazine.
Claim 13
Dependent Claim
9 words
The compound of claim 2 which is 7-(m-chloro-phenyl)-8-(2''-chloro-6''-methyl-phenyl)-5-oxo-2,3-dihydro -imidazo(1,2-a)s-triazine.
Claim 14
Dependent Claim
9 words
The compound of claim 2 which is 7-(m-chloro-phenyl)-8-(2''-trifluoromethyl-phenyl)-5-oxo-2,3-dihydro -imidazo(1,2-a)s-triazine.
Claim 15
Dependent Claim
9 words
The compound of claim 2 which is 7-(m-chloro-phenyl)-8-(2''-chloro-4''-methyl-phenyl)-5-oxo-2,3-dihydro -imidazo(1,2-a)s-triazine.
Claim 16
Dependent Claim
8 words
The compound of claim 2 which is 7-(m-chloro-phenyl)-8-phenyl-5-oxo-2,3-dihydro-imidazo(1,2-a)s-triazine.
References Cited (Backward Citations)
US3840537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |