Patent · US Expired

1,4-Dihydropyridine derivatives

US4448964A · kind A · utility

12Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 1982
Grant dateMay 15, 1984
Priority date
Expiry dateApr 13, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D211/90
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Compounds having coronary and vasodilator effects, a hypotensive effect, and useful as antianginal drugs and drugs for treating hypertension are represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different groups and each represents a lower alkyl group, one of R.sub.3 and R.sub.4 represents a lower alkyl group and the other represents a group of the general formula: ##STR2## wherein R.sub.5 represents an aralkyl group or an acyl group and n represents 0 or an integer of 1-3; the pharmaceutically acceptable acid addition salts thereof are also effective therapeutic compounds.

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