US4138243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel heterocyclic compounds
Assignee: Novartis Corp
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Filing: 1977-08-08
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Granted: 1979-02-06
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Expires: 1997-08-08
Abstract
Abstract The present invention relates to novel 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds substituted on the nitrogen atom, to processes for producing them, to their use in agriculture for combating animal and plant pests and also for regulating plant growth, and to compositions containing these novel pyrrole compounds. The novel 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds substituted on the nitrogen atom correspond to the formula ##STR1## where A represents the hydroxyl group, a halogen atom or an O-acyl radical, and R represents an aryl radical, an aralkyl radical, or an heteroaromatic radical which has 5-6 ring members and which is bound by way of a carbon atom.
Inventors
- 👤 Beat Bohner
- 👤 Marcus Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:10
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; A; A01; A01N; A01N43/00; A01N43/34; A01N43/36; A01N43/40; A01N43/48; A01N43/54; A01N43/60; A01N43/72; A01N43/74; A01N43/82; A01N47/00; A01N47/02; A01N47/06; A01N47/08; A01N47/10; A01N47/18; A01N47/22; A01N53/00; C07D207/30; C07D207/34; C07D207/36; C07D207/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds of the formula I ##STR14## wherein A represents the hydroxyl group, a halogen atom or an O-acyl radical, and R represents a pyridyl radical which is bound by way of a carbon atom and may be substituted by halogen, lower alkyl, lower alkoxy, hydroxy, nitro, amino, cyano, C 1 -C 4 alkylcarbonylamino and piperidine.
Claim 2
Dependent Claim
56 words
3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds of the formula I ##STR14## wherein A represents the hydroxyl group, a halogen atom or an O-acyl radical, and R represents a pyridyl radical which is bound by way of a carbon atom and may be substituted by halogen, lower alkyl, lower alkoxy, hydroxy, nitro, amino, cyano, C 1 -C 4 alkylcarbonylamino and piperidine.
Claim 3
Dependent Claim
14 words
The compounds of the formula I, claim 1, wherein A represents the OH group.
Claim 4
Dependent Claim
14 words
The compounds of the formula I, claim 1, wherein R represents a 2-pyridyl radical.
Claim 5
Dependent Claim
7 words
The compound 3,4-dimethyl-2-hydroxy-1-(5'-methyl-pyrid-2'-yl)-5-oxo-pyrrole according to claim 1.
Claim 6
Dependent Claim
7 words
The compound, 3,4-dimethyl-2-hydroxy-1-(4'-methyl-pyrid-2'-yl)-5-oxy-pyrrole, according to claim 1.
Claim 7
Dependent Claim
8 words
The compound, 3,4-dimethyl-2-hydroxy-5-oxo-1-(pyrid-2'-yl)-pyrrole hydrochloride, according to claim 1.
Claim 8
Dependent Claim
7 words
The compound, 1-(4'-ethyl-pyrid-2'-yl)-3,4-dimethyl-2-hydroxy-5-oxo-pyrrole, according to claim 1.
Claim 9
Dependent Claim
7 words
The compound, 1-(4'-tert.-butyl-pyrid-2'-yl)-3,4-dimethyl-2-hydroxy-5-oxo-pyrrole, according to claim 1.
Claim 10
Dependent Claim
33 words
Composition for combating plant and animal pests, which composition contains as active substance a pesticidally effective amount of a 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydro-pyrrole compound of the formula I, claim 1, together with a suitable carrier therefor.
Claim 11
Dependent Claim
28 words
A method for combating plant and animal pests which comprises applying to the locus thereof a pesticidally effective amount of 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydro-pyrrole compound of the formula I, claim 1.
References Cited (Backward Citations)
US3708473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |