Certain heterocyclic sulfoximide derivatives
US4294838A · kind A · utility
Inventors
Key dates
| Filing date | May 15, 1980 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | May 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.