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US3980659A Expired / Lapsed US ⏱️ 0.0 years remaining

Certain 6-amino-4-hydrocarbyl-nicotinamides

Assignee: Cassella Farbwerke Mainkur AG
•
Filing: 1974-11-06
•
Granted: 1976-09-14
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Expires: 1994-11-06
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Abstract

Abstract Compounds of the formula ##SPC1## Wherein X is aliphatic, cycloaliphatic, aromatic, aralkyl, hetaryl, hetarylalkyl or hydrogen; Y is aliphatic, aromatic, aralkyl, --COOR 1 , --COR 2 , ##EQU1## --SO 2 R 2 , ##EQU2## --CN, --NH 2 , --NO, --NO 2 or hydrogen with the proviso that when Y is hydrogen, X is other than hydrogen; Z 1 is cyano, ##EQU3## --NH--OR 10 , ##EQU4## --OR 12 , --SR 12 or --SO 2 R 12 and Z 2 is chlorine, bromine, cyano, hydroxy, mercapto, --OR 12 , --SR 12 , --SO 2 R 12 , ##EQU5## --NH--OR 10 or ##EQU6## R 1 is aliphatic; R 2 is aliphatic, cycloaliphatic, aromatic, aralkyl or heterocyclic; R 3 and R 4 when taken separately are hydrogen, aliphatic, cycloaliphatic, aromatic or aralkyl; R 3 and R 4 when taken together with the nitrogen atom to which they are attached form a heterocyclic moiety; R 5 and R 6 when taken separately are aliphatic, aromatic, aralkyl, heterocyclic or hydrogen; R 5 and R 6 when taken together with the nitrogen atom to which they are attached are heterocyclic; R 7 is hydrogen, aliphatic or aromatic; R 8 and R 9 are aliphatic or aromatic, R 10 is hydrogen, aliphatic or aralkyl, R 11 is aliphatic and R 12 is aliphatic, aromatic or aralkyl; R 10 and R 11 when taken together with the nitrogen atom to which they are attached are heterocyclic.

Inventors

  • 👤 Erwin Fleckenstein
  • 👤 Ernst Heinrich
  • 👤 Reinhard Mohr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:11
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/02; C07D413/04; C07D401/00; C07D401/02; C07D401/06; C07D401/12; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 128 words
A compound of the formula ##SPC37## wherein X is alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl or benzyl; Z 1 is ##EQU26## Z 2 is mercapto, --SR 12 or --SO 2 R 12 ; R 3 and R 4 are alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl, phenethyl or hydrogen; R 5 and R 6 are alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl, phenethyl or hydrogen and R 12 is alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl or phenethyl.
Claim 2
Dependent Claim 128 words
A compound of the formula ##SPC37## wherein X is alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl or benzyl; Z 1 is ##EQU26## Z 2 is mercapto, --SR 12 or --SO 2 R 12 ; R 3 and R 4 are alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl, phenethyl or hydrogen; R 5 and R 6 are alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl, phenethyl or hydrogen and R 12 is alkyl having 1 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, cycloalkyl having 3 to 8 carbon atoms, phenyl, benzyl or phenethyl.
Claim 3
Dependent Claim 13 words
The compound of claim 1 wherein R 3 and R 4 are hydrogen.
Claim 4
Dependent Claim 15 words
The compound of claim 1 wherein X is alkyl having 1 to 6 carbon atoms.
Claim 5
Dependent Claim 9 words
The compound of claim 1 wherein X is methyl.
Claim 6
Dependent Claim 13 words
The compound of claim 1 wherein R 5 and R 6 are hydrogen.
Claim 7
Dependent Claim 16 words
The compound of claim 1 wherein R 12 is alkyl having 1 to 6 carbon atoms.
Claim 8
Dependent Claim 30 words
The compound of claim 1 wherein X is methyl, R 3 and R 4 are each hydrogen, Z 1 is amino and Z 2 is --SC 2 H 5 .

References Cited (Backward Citations)

US3853895A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-09-14 1980-03-15 1980-09-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-09-14 1984-03-15 1984-09-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-09-14 1988-03-15 1988-09-14 $7700.00 Window Closed / Lapsed

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