US4665187A
Expired / Lapsed
US
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Certain 1,2,3,6-tetrahydro-pyridyl-N-lower-alkanoyl-pyridines as intermediates
Assignee: Merck Patent GmbH
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Filing: 1985-10-18
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Granted: 1987-05-12
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Expires: 2005-10-18
Abstract
Abstract New pyridine derivatives of the formula I ##STR1## wherein R 1 and R 2 are each phenyl or 2- or 3-thienyl radicals which are unsubstituted or monosubstituted or disubstituted by alkyl, alkoxy, F, Cl, Br, OH and/or CF 3 and n is 1, 2 or 3, and the alkyl and alkoxy groups each have 1-4 C atoms, and salts thereof, have suppressant actions on the central nervous system, in particular neuroleptic actions.
Inventors
- 👤 Henning Bottcher
- 👤 Andreas Fuchs
- 👤 Christoph Seyfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:35
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/06; A; A61; A61P; A61P25/00; A61P25/20; A61P25/24; A61P25/26; C07D409/00; C07D409/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A pyridine derivative of the formula ##STR6## wherein L is --(CH 2 ) n-1 --CO-- and each of R 1 and R 2 independently is phenyl, 2- or 3-thienyl, or phenyl or 2- or 3-thienyl each monosubstituted or disubstituted by alkyl, alkoxy, F, Cl, Br, OH or CF 3 , n is 1, 2 or 3, and alkyl and alkoxy each are of 1-4 C atoms or a salt physiologically acceptable acid addition thereof.
Claim 2
Dependent Claim
74 words
A pyridine derivative of the formula ##STR6## wherein L is --(CH 2 ) n-1 --CO-- and each of R 1 and R 2 independently is phenyl, 2- or 3-thienyl, or phenyl or 2- or 3-thienyl each monosubstituted or disubstituted by alkyl, alkoxy, F, Cl, Br, OH or CF 3 , n is 1, 2 or 3, and alkyl and alkoxy each are of 1-4 C atoms or a salt physiologically acceptable acid addition thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |