Patent · US Expired

Thienothiazine derivatives

US4175085A · kind A · utility

5Cited by
0References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 2, 1978
Grant dateNov 20, 1979
Priority date
Expiry dateMar 2, 1998

Classification

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

Abstract

Thienothiazine derivatives of the formula ##STR1## wherein R.sub.1 is lower alkyl; R.sub.2 is an unsubstituted aromatic heterocyclic radical which contains from 1 to 4 hetero atoms or one which is substituted by one or two lower alkyl groups, or is an unsubstituted phenyl radical or one substituted by halogen, hydroxy, lower alkyl, nitro, trifluoromethyl or lower alkoxy; and R.sub.3 and R.sub.4, independently, are hydrogen or lower alkyl, prepared inter alia, from novel intermediates, are described. The end products are useful as anti-inflammatory, analgesic and anti-rheumatic agents.

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