Benzothiazine derivatives
AssigneeYoshitomi Pharmaceutical Industries, Ltd.
InventorsTetsuo Yokobe, Mitsuru Masago, Yasuaki Chihara, Yutaka Maruyama
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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.
Claims9
A compound of the formula ##STR15## wherein R.sub.1 is hydrogen, alkyl, alkoxycarbonyl, alkoxalyl, cycloalkyl, aralkyl and phenyl which may have 1 to 3 substituents at optional position(s) in optional combinations, each substituent being selected from the group consisting of halogen, lower alkyl and lower alkoxy, R.sub.2 is hydrogen or alkyl, X is sulphur or oxygen, and Y is methylene or ethylene, and acid addition salts thereof.
Dependencies are inferred from the claim text.