Patent · US Expired

2,4-Diamino 5-bromo 6-chloro pyrimidines, process for their preparation and use as pharmaceuticals

US4051244A · kind A · utility

37Cited by
3References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 1976
Grant dateSep 27, 1977
Priority date
Expiry dateMay 20, 1996

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D239/48
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.3 represent hydrogen or alkyl containing 1 to 4 carbons; R.sub.2 and R.sub.4 represent hydrogen, alkyl containing 1 to 8 carbons, dialkylaminoalkyl or aryl, ##STR2## may also represent the piperazinyl group which may be substituted in the 4 position by methyl, phenyl or benzyl. Compounds have pharmaceutical utility.

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