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US3875176A Expired / Lapsed US ⏱️ 0.0 years remaining

2-benzoyl -3-amino-pyridines

Assignee: Evonik Operations GmbH
•
Filing: 1973-04-03
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Granted: 1975-04-01
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Expires: 1993-04-03
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Abstract

Abstract WHERE R1 is halogen, R2 and R3 are hydrogen, halogen, trifluoromethyl, hydroxy, cyano, lower alkyl or lower alkoxy, R4 is hydrogen or lower alkyl, and R5 is hydrogen, lower alkyl, benzoyl, substituted benzoyl, lower carbalkoxy or There are prepared compounds of the formula WHERE A is oxygen, sulfur, imino or lower alkylimino and R6 is lower alkyl, lower alkyl having 1 to 3 halogen atoms, lower alkenyl, hydroxymethyl, carboxymethyl, carb-lower alkoxy methyl, amino lower alkyl or alkylaminoalkyl having 2 to 13 carbon atoms or where any hydroxy or primary or secondary amino group is substituted by an alkanoyl group of 2 to 8 carbon atoms, carbalkoxy having 1 to 6 carbon atoms, carbophenoxy or carbobenzyloxy or a pharmacologically acceptable salt thereof. The compounds are useful in emotional disturbances, tension, anxiety, increased irritability.

Inventors

  • 👤 Bebenburg Walter Von
  • 👤 Heribert Offermanns

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 21:37
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; C07D213/24; C07D213/54; C07D213/57; C07D213/61; C07D213/72; C07D213/73; C07D213/74; C07D213/75

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 6 words
A PYRIDINE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 6 words
A PYRIDINE COMPOUND OF THE FORMULA
Claim 3
Dependent Claim 86 words
A pyridine compound according to claim 1 wherein R1 is halogen of atomic weight 9 to 80, R2 is hydrogen, halogen of atomic weight 9 to 80, trifluoromethyl, hydroxy, cyano, alkyl of 1 to 6 carbon atoms or alkoxy of 1 to 6 carbon atoms, R3 is hydrogen, halogen of atomic weight 9 to 80, hydroxy or alkyl of 1 to 6 carbon atoms, R4 is hydrogen or alkyl of 1 to 6 carbon atoms and R5 is hydrogen or alkyl of 1 to 6 atoms.
Claim 4
Dependent Claim 11 words
A pyridine compound according to claim 2 wherein R1 is chlorine.
Claim 5
Dependent Claim 23 words
A pyridine compound according to claim 3 wherein R4 is hydrogen and R5 is hydrogen or alkyl of 1 to 4 carbon atoms.
Claim 6
Dependent Claim 11 words
A pyridine compound according to claim 4 wherein R3 is hydrogen.
Claim 7
Dependent Claim 22 words
A pyridine compound according to claim 5 wherein R2 is hydrogen, chlorine, fluorine, trifluoromethyl or alkyl of 1 to 4 carbon atoms.
Claim 8
Dependent Claim 18 words
A compound according to claim 5 wherein R2 is hydrogen or halogen of atomic weight 9 to 80.
Claim 9
Dependent Claim 11 words
A pyridine compound according to claim 4 wherein R5 is hydrogen.
Claim 10
Dependent Claim 14 words
A pyridine compound according to claim 8 wherein R2 is hydrogen, chlorine or fluorine.
Claim 11
Dependent Claim 10 words
A pyridine compound according to claim 9 which is 2-benzoyl-3-amino-6-chloropyridine.
Claim 12
Dependent Claim 9 words
A compound according to claim 9 which is 2-(o-chlorobenzoyl)-3-amino-6-chloropyridine.

References Cited (Backward Citations)

US3781360A Cited
US3763178A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-31 1978-09-30 1979-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-31 1982-09-30 1983-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-31 1986-09-30 1987-04-01 $7700.00 Window Closed / Lapsed

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