Patent US3931180A successfully refreshed from Google Patents.
US3931180A
Expired / Lapsed
US
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Substituted 6-hydroxy pyrimidines
Assignee: Sandoz AG
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Filing: 1974-03-19
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Granted: 1976-01-06
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Expires: 1994-03-19
Abstract
Abstract The present invention concerns novel 4-hydroxypyrimidine derivatives of the formula: ##SPC1## Wherein R 1 is a substituent, e.g., alkyl, R 2 is hydrogen or a substituent, e.g., alkyl R 3 is amino unsubstituted or substituted by alkyl, a nitrogen heterocycle, alkoxy or alkylthio, which are used as intermediates in the production of useful insecticides.
Inventors
- 👤 Herbert Muhle
- 👤 Karlheinz Milzner
- 👤 Fritz Reisser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:57
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/60; C07D239/52
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
92 words
A compound of the formula: ##SPC6## wherein R 1 is alkyl (C 1 -C 6 ) or cycloalkyl (C 3 -C 8 ), R 2 is hydrogen, alkyl (C 1 -C 6 ) or alkenyl-(C 2 -C 6 ) and R 3 is a radical --NR 4 R 5 wherein R 4 and R 5 are either each, independently, hydrogen or alkyl (C 1 -C 6 ) or together with the nitrogen atom to which they are bound form piperidino, morpholino or pyrrolidino, or alkoxy or alkylthio (C 1 -C 6 ).
Claim 2
Dependent Claim
92 words
A compound of the formula: ##SPC6## wherein R 1 is alkyl (C 1 -C 6 ) or cycloalkyl (C 3 -C 8 ), R 2 is hydrogen, alkyl (C 1 -C 6 ) or alkenyl-(C 2 -C 6 ) and R 3 is a radical --NR 4 R 5 wherein R 4 and R 5 are either each, independently, hydrogen or alkyl (C 1 -C 6 ) or together with the nitrogen atom to which they are bound form piperidino, morpholino or pyrrolidino, or alkoxy or alkylthio (C 1 -C 6 ).
Claim 3
Dependent Claim
8 words
The compound of claim 1, which is 2-diethylamino-4-methoxy-6-hydroxy-pyrimidine.
Claim 4
Dependent Claim
8 words
The compound of claim 1, which is 2-dimethylamino-4-methoxy-6-hydroxy-pyrimidine.
Claim 5
Dependent Claim
8 words
The compound of claim 1, which is 2-di-n.propylamino-4-methoxy-6-hydroxy-pyrimidine.
Claim 6
Dependent Claim
8 words
The compound of claim 1, which is 2-dimethylamino-4-ethoxy-6-hydroxy-pyrimidine.
Claim 7
Dependent Claim
8 words
The compound of claim 1, which is 2-diethylamino-4-ethoxy-6-hydroxy-pyrimidine.
Claim 8
Dependent Claim
8 words
The compound of claim 1, which is 2-di-n.propylamino-4-ethoxy-6-hydroxy-pyrimidine.
Claim 9
Dependent Claim
8 words
The compound of claim 1, which is 2-methoxy-4-ethoxy-6-hydroxypyrimidine.
Claim 10
Dependent Claim
8 words
The compound of claim 1, which is 2-methoxy-4-methoxy-6-hydroxypyrimidine.
Claim 11
Dependent Claim
8 words
The compound of claim 1, which is 2-methylthio-4-ethoxy-6-hydroxypyrimidine.
Claim 12
Dependent Claim
8 words
The compound of claim 1, which is 2-methylthio-4-methoxy-6-hydroxypyrimidine.
Claim 13
Dependent Claim
8 words
The compound of claim 1, which is 2-dimethylamino-4-n-propoxy-6-hydroxypyrimidine.
References Cited (Backward Citations)
US2754243A
Cited
US3287453A
Cited
GB1182584A
Cited
GB1223686A
Cited
CH509039A
Cited
US3591589A
Cited
US3862188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |