Patent · US Expired

2,2-dimethylchromene derivatives, process for their preparation and pharmaceutical compositions in which they are present

US5391751A · kind A · utility

1Cited by
1References
9Claims
0Family size

Inventors

Key dates

Filing dateAug 19, 1991
Grant dateFeb 21, 1995
Priority date
Expiry dateAug 19, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F9/65586
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The present invention relates to 2,2-dimethylchromene derivatives of the formula: ##STR1## in which Z represents a halogen atom or a cyano, nitro, acetyl, phosphono or dialkoxyphosohoryl group, the alkoxy group containing 1 to 3 carbon atoms, and the pharmaceutically acceptable salts of the phosphono group. These compounds show an antihypertensive and antiarrythmic activity. The present invention also relates to a process for the preparation of said compounds and to the pharmaceutical compositions in which the are present.

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