Abstract
In the title molecule, C20H19N3O4S, the heterocyclic thiazine ring adopts a half-chair conformation with the S and N atoms displaced by 0.492 (6) and 0.199 (6) Å, respectively, on opposite sides from the mean plane formed by the remaining ring atoms. The ethanone group lies at an angle of 9.4 (2)° with respect to the benzene ring, which lies almost perpendicular to the pyrazole ring, with a dihedral between the two planes of 78.07 (9)°. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds.
Highlights
C20H19N3O4S, the heterocyclic thiazine ring adopts a half-chair conformation with the S and N atoms displaced by 0.492 (6) and 0.199 (6) Å, respectively, on opposite sides from the mean plane formed by the remaining ring atoms
The ethanone group lies at an angle of 9.4 (2) with respect to the benzene ring, which lies almost perpendicular to the pyrazole ring, with a dihedral between the two planes of
Symmetry codes: (i) x, y−1, z; (ii) x+1/2, −y+1/2, z−1/2; (iii) −x+3/2, y+1/2, −z+1/2; (iv) −x+1, −y+1, −z
Summary
Institute of Chemistry, University of the Punjab, Lahore 54590, Pakistan, bChemistry Department, Govt. College University, Faisalabad, Pakistan, and cDepartment of Chemistry, The University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4
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