Patent · US Expired

Pharmaceutical compositions comprising azapurinones useful in treating allergic respiratory disorders

US3987160A · kind A · utility

13Cited by
0References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 29, 1973
Grant dateOct 19, 1976
Priority date
Expiry dateMay 29, 1993

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P20/55
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

8-Azapurin-6-ones substituted in the 2-position by an unsubstituted or substituted phenyl or naphthyl group, or by an alkenyl or alkynyl group, a cycloalkyl group, an alkyl group contaning 2 to 10 carbon atoms, or an alkyl group containing 1 to 10 carbon atoms carrying one or more substitutents selected from halogen atoms and hydroxy, cycloalkyl, alkoxy, phenyl and substituted phenyl groups, and pharmaceutically acceptable salts thereof, possess pharmacological properties useful, for example, in the treatment of allergic bronchial asthma.

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