Patent · US Expired

Certain heterocyclic sulfoximide derivatives

US4294838A · kind A · utility

0Cited by
1References
11Claims
0Family size

Inventors

Key dates

Filing dateMay 15, 1980
Grant dateOct 13, 1981
Priority date
Expiry dateMay 15, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D333/34
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Sulphoximide derivatives of the general formula: ##STR1## wherein R.sub.1 is a phenyl, thienyl, furyl or pyridyl ring; R.sub.2 is a thienyl, furyl, or pyridyl ring; R.sub.3 and R.sub.4 are the same or are different and are alkyl groups containing up to 6 carbon atoms or together with the nitrogen atom to which they are attached form a pyrrolidine, piperidine, or morpholine ring; and n is a whole number from 1 to 5; and the pharmaceutically acceptable organic and inorganic acid addition and quaternary ammoniuim salts thereof. The compounds of the invention exhibit anti-bronchospasmolytic activity.

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