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US5254696A
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N-acylpyrrolidine derivatives
Assignee: Bayer AG
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Filing: 1992-07-21
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Granted: 1993-10-19
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Expires: 2012-07-21
Abstract
Abstract Novel pyrrolidine derivatives of the formula ##STR1## in which R 1 , R 2 , R 3 , R 4 and R 5 have the meaning specified in the description, X represents hydrogen, fluorine, chlorine, bromine or optionally substituted C 1 -C 4 -alkyl, and m represents 1, 2 or 3.
Inventors
- 👤 Michael Negele
- 👤 Bernd Baasner
- 👤 Heinz-Jurgen Bertram
- 👤 Jurgen Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:19
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/04; C07D207/08; A; A01; A01N; A01N43/00; A01N43/34; A01N43/36; C07D207/18; C07D207/22; C07D207/24; C07D207/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
196 words
A pyrrolidine derivative of the formula ##STR34## in which R 1 , R 2 and R 3 independently of one another represent hydrogen, fluorine, chlorine, bromine, optionally substituted C 1 -C 5 -alkyl or optionally substituted C 5 -C 10 -aryl, R 4 represents hydrogen, fluorine, chlorine, bromine, cyano, optionally substituted C 1 -C 5 -alkyl, optionally substituted C 5 -C 10 -aryl or ##STR35## R 5 represents hydrogen, optionally substituted C 1 -C 5 -alkyl or optionally substituted C 6 -C 10 -aryl, X represents hydrogen, fluorine, chlorine, bromine or optionally substituted C 1 -C 4 -alkyl, and m represents 1, 2 or 3, the optional substituents on alkyl in the definitions of R 1 , R 2 , R 3 , R 4 , R 5 and X being selected from the group consisting of fluorine, chlorine, bromine, hydroxyl, methoxy and ethoxy, and the optional substituents on aryl in the definitions of R 1 , R 2 , R 3 , R 4 , R 5 being selected from the group consisting of fluorine, chlorine, bromine, C 1 -C 4 -alkyl and C 1 -C 4 -alkoxy, with the exception of the compound 2-trifluoromethyl-pyrrolidine.
Claim 2
Dependent Claim
196 words
A pyrrolidine derivative of the formula ##STR34## in which R 1 , R 2 and R 3 independently of one another represent hydrogen, fluorine, chlorine, bromine, optionally substituted C 1 -C 5 -alkyl or optionally substituted C 5 -C 10 -aryl, R 4 represents hydrogen, fluorine, chlorine, bromine, cyano, optionally substituted C 1 -C 5 -alkyl, optionally substituted C 5 -C 10 -aryl or ##STR35## R 5 represents hydrogen, optionally substituted C 1 -C 5 -alkyl or optionally substituted C 6 -C 10 -aryl, X represents hydrogen, fluorine, chlorine, bromine or optionally substituted C 1 -C 4 -alkyl, and m represents 1, 2 or 3, the optional substituents on alkyl in the definitions of R 1 , R 2 , R 3 , R 4 , R 5 and X being selected from the group consisting of fluorine, chlorine, bromine, hydroxyl, methoxy and ethoxy, and the optional substituents on aryl in the definitions of R 1 , R 2 , R 3 , R 4 , R 5 being selected from the group consisting of fluorine, chlorine, bromine, C 1 -C 4 -alkyl and C 1 -C 4 -alkoxy, with the exception of the compound 2-trifluoromethyl-pyrrolidine.
Claim 3
Dependent Claim
91 words
A pyrrolidine derivative according to claim 1, in which R 1 represents hydrogen, fluorine, chlorine, bromine, methyl, ethyl, n-propyl, i-propyl, n-butyl, s-butyl, i-butyl, t-butyl, phenyl or naphthyl, R 2 represents hydrogen, fluorine, chlorine, bromine, methyl, ethyl, phenyl or naphthyl, R 3 represents hydrogen, fluorine, chlorine, bromine, methyl or ethyl, R 4 represents hydrogen, fluorine, chlorine, bromine, cyano, methyl, ethyl, phenyl, methoxycarbonyl or ethoxycarbonyl, R 5 represents methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl or phenyl, X represents hydrogen, chlorine, bromine, methyl or ethyl, and m represents 1, 2, or 3.
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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |