4-Hydroxy-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxides and salts thereof

摘要

Compounds of the formula <IMAGE> wherein R1 is hydrogen, methyl or ethyl; R2 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.