Patent · US Expired

Pyridines

US4987140A · kind A · utility

2Cited by
3References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 1989
Grant dateJan 22, 1991
Priority date
Expiry dateNov 27, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D417/12
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Novel pyridines of the formula ##STR1## wherein R is selected from the group consisting of (a) phenyl optionally substituted with at least one member of the group consisting of hydroxy, alkyl and alkoxy of 1 to 5 carbon atoms, halogen --CF.sub.3 and --NO.sub.2 and (b) a 5 to 6 member heterocyclic optionally substituted with alkyl of 1 to 5 carbon atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of (a) alkyl of 1 to 5 carbon atoms, (b) 5 to 6 member heterocyclic optionally substituted with alkyl of 1 to 5 carbon atoms and (c) phenyl and naphthyl optionally substituted with at least one member of the group consisting of hydroxy, alkyl and alkoxy of 1 to 5 carbon atoms, halogen, --NO.sub.3 and --CF.sub.3, R.sub.3 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, --(CF.sub.2).sub.n --CF.sub.3 and ##STR2## n is an integer from 0 to 4 and Alk is alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable salts with acids and bases having anti-inflammatory and anti-rheumatic properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.