Abstract
The title compound, C21H21N3O7S, contains an oxazolidinone ring and a sulfonamide group, both characteristic for biologically and pharrmaceutically active compounds. Both stereogenic centres reveal an S absolute configuration. The two oxazolidinone rings are in an envelope conformation with the methylene carbon flap atoms deviating by 0.428 (1) and 0.364 (2) Å from the best least-square planes formed by the four other ring atoms. An intramolecular N—H⋯O hydrogen bond contributes to the folded conformation of the molecule. In the crystal, weak intermolecular C—H⋯O interactions connect the molecules into helices along the the twofold screw axes.
Highlights
The title compound, C21H21N3O7S, contains an oxazolidinone ring and a sulfonamide group, both characteristic for biologically and pharrmaceutically active compounds
The two oxazolidinone rings are in an envelope conformation with the methylene carbon flap atoms deviating by 0.428 (1) and
An intramolecular N—H O hydrogen bond contributes to the folded conformation of the molecule
Summary
Laboratoire des Chimie Organique Appliquée, Université Badji Mokhtar-Annaba, Algeria, and bLaboratoire des Structures, Propriétés et Interactions Inter Atomiques, Centre Universitaire Abbes Laghrour-Khenchela, 40000 Khenchela, Algeria. The title compound, C21H21N3O7S, contains an oxazolidinone ring and a sulfonamide group, both characteristic for biologically and pharrmaceutically active compounds. Both stereogenic centres reveal an S absolute configuration. The two oxazolidinone rings are in an envelope conformation with the methylene carbon flap atoms deviating by 0.428 (1) and. An intramolecular N—H O hydrogen bond contributes to the folded conformation of the molecule. Weak intermolecular C—H O interactions connect the molecules into helices along the the twofold screw axes
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