I. Ukrainets, L. A. Petrushova, S. P. Dzyubenko
Oct 1, 2017
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Journal
Pharmaceutical Chemistry Journal
Abstract
Continuing the search for novel biologically active substances among the 4-hydroxy-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides series, we report here the synthesis of a series of {[(4-hydroxy-1-methyl-2,2-dioxido-1H-2,1-benzothiazin-3-yl)carbonyl]amino} benzoic acids asd their derivatives at the carboxyl group. Pharmacological testing showed that compounds with a free carboxyl group are of interest as potential diuretics, while carbamide derivatives have potential as analgesics. Esterification of the carboxyl group with lower alkyl alcohols was less effective.