Benzothiazine derivatives
US4358407A · kind A · utility
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2References
9Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Benzothiazine derivatives represented by the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl, alkoxycarbonyl, alkoxalyl, phenyl which may optionally have a substituent or substituents, cycloalkyl or aralkyl, R.sub.2 is hydrogen or alkyl, X is sulphur or oxygen, and Y is methylene or ethylene, and acid addition salts thereof. These compounds are useful as analgesic agents, anti-inflammatory agents, anti-allergic agents, anti-arthritic agents, circulation-improving agents or like pharmaceutics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.