Date Published: May 01, 2012
Publisher: International Union of Crystallography
Author(s): Ghulam Mustafa, Tahir Muhmood, Islam Ullah Khan, Mehmet Akkurt.
In the title compound, C17H19NO4S, the terminal ethyl group is disordered over two sets of sites, with refined site occupancies of 0.536 (7) and 0.464 (7). The dihedral angle between the two aromatic rings is 81.92 (12)°. The molecular conformation is stabilized by intramolecular N—H⋯O and C—H⋯O hydrogen bonds, which generate S(6) motifs. In the crystal, molecules are linked by C—H⋯O hydrogen bonds, forming chains along the b axis.
For related structures, see: Mustafa et al. (2010 ▶, 2011 ▶, 2012 ▶); Khan et al. (2011 ▶). For bond-length data, see: Allen et al. (1987 ▶).