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US 4,233,299 AGranted
4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxides and salts thereof
AssigneeBoehringer Ingelheim GmbH
InventorsGunter Trummlitz, Wolfhard Engel, Ernst Seeger, Gunther Engelhardt
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Abstract
Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, methyl or ethyl; R.sub.2 is methyl, ethyl or n-propyl; and Y is hydrogen, methyl, methoxy, fluorine or chlorine; and non-toxic, pharmacologically acceptable salts thereof formed with an inorganic or organic base. The compounds as well as their salts are useful as antiphlogistics.
Claims5
A compound of the formula ##STR6## wherein R.sub.1 is hydrogen, methyl or ethyl;
- R.sub.2 is methyl, ethyl or n-propyl;
- and
- Y is hydrogen, methyl, methoxy, fluorine or chlorine or a non-toxic, pharmacologically acceptable salt thereof formed with an inorganic or organic base.
Dependencies are inferred from the claim text.