A. Mukhtar, M. Tahir, M. Khan
Jun 13, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the title compound, C17H18N2O3S, the dihedral angles between the thiophene ring and the ethyl ester group and the pyridine-4-carboxamide unit are 7.1 (2) and 9.47 (11)°, respectively. An intramolecular N—H⋯O hydrogen bond generates an S(6) ring. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds between the tetrahydro-1-benzothiophene and the pyridine-4-carboxamide residues generate R 2 2(16) loops. There exists positional disorder in three methelene groups of the cyclohexane ring and the terminal C atom of the ethyl ester side chain in a 0.691 (14):0.309 (14) occupancy ratio.