US4772629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optically active isomers of trans-3-(2-chloro-2-(4-chloro-phenyl)-vinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid alpha-cyano-4-fluoro-3-phenoxy-benzyl ester and their use as ectoparasiticides
Assignee: Bayer AG
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Filing: 1986-03-17
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Granted: 1988-09-20
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Expires: 2006-03-17
Abstract
Abstract The invention relates to optically active isomers of trans-3-(2-chloro-2-(4-chloro-phenyl)-vinyl-2,2-dimethyl-cyclopropane-1-carboxylic acid α- cyano-4-fluoro-3-phenoxy-benzyl ester of Formula (I), to methods for the preparation of said optically active isomers, to compositions containing said optically active isomers and to the use of said optically active isomers and compositions for their ectoparasiticidal activity.
Inventors
- 👤 Rainer Fuchs
- 👤 Wilhelm Stendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
A; A01; A01N; A01N53/00; C; C07; C07C; C07C61/00; C07C61/16; C07C61/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
28 words
An optically active isomer of trans-3-(2-chloro-2-(4-chloro-phenyl)-vinyl)-2,2-dimethylcyclopropane-1-carboxylic acid a-cyano-4-fluoro-3-phenoxybenzyl ester of the formula ##STR18## in which the configuration is (a) 1R, trans Z, α-S (b) 1R, trans Z, αR/S.
Claim 2
Dependent Claim
28 words
An optically active isomer of trans-3-(2-chloro-2-(4-chloro-phenyl)-vinyl)-2,2-dimethylcyclopropane-1-carboxylic acid a-cyano-4-fluoro-3-phenoxybenzyl ester of the formula ##STR18## in which the configuration is (a) 1R, trans Z, α-S (b) 1R, trans Z, αR/S.
Claim 3
Dependent Claim
58 words
A method of combating ectoparasites, which comprises applying to the ectoparasites, or to a habitat thereof, an ectoparasiticidally effective amount of a compound according to claim 1 alone or in the form of a composition containing as active ingredient an ectoparasitically effective amount of a compound according to claim 1 in admixture with an inert diluent or carrier.
Claim 4
Dependent Claim
40 words
Compounds according to claim 1, in which the symbols "Z", (+) and (-) and "R" and "S" mean that the compounds are enriched in the isomers of the particular configuration given to the extent of more than 90% by weight.
Claim 5
Dependent Claim
31 words
A method of freeing or protecting domesticated animals from ectoparasites, which comprises applying an ectoparasiticidally effective amount of a compound according to claim 1 in admixture with a diluent or carrier.
Claim 6
Dependent Claim
24 words
An ectoparasiticidal composition, characterised in that it comprises as active ingredient a compound according to claim 1 in admixture with an inert veterinary carrier.
References Cited (Backward Citations)
US4276306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |