N-(2,3-Dimethylphenyl)-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

In the crystal structure of the title compound, C18H18N2O4S, the thiazine ring adopts a distorted half-chair conformation. 1,2-Benzothiazines of this kind have a wide range of biological activities and are mainly used as medicines in the treatment of inflammation and rheumatoid arthritis. The enolic...

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Bibliographic Details
Format: Article
Language:English
Published: International Union of Crystallography 2009-03-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809006837
Description
Summary:In the crystal structure of the title compound, C18H18N2O4S, the thiazine ring adopts a distorted half-chair conformation. 1,2-Benzothiazines of this kind have a wide range of biological activities and are mainly used as medicines in the treatment of inflammation and rheumatoid arthritis. The enolic H atom is involved in an intramolecular O—H...O hydrogen bond, forming a six-membered ring. The molecules arrange themselves into centrosymmetric dimers by means of intermolecular N—H...O hydrogen bonds. A weak intermolcular C—H...O interaction is also present.
ISSN:1600-5368