Date Published: July 01, 2011
Publisher: International Union of Crystallography
Author(s): Marcus V. N. de Souza, Alessandra C. Pinheiro, Edward R. T. Tiekink, Solange M. S. V. Wardell, James L. Wardell.
http://doi.org/10.1107/S1600536811024895
Abstract
The molecule of the title compound, C18H18ClN3O4, is twisted about the chiral C atom with the dihedral angle between the two amide residues being 87.8 (5)°, but, overall, it can be described as curved, with the benzene rings lying on the same side of the molecule [dihedral angle = 62.8 (4)°]. The conformation about the imine bond [1.294 (7) Å] is E. In the crystal, a two-dimensional array in the ab plane is mediated by O—H⋯O and N—H⋯O hydrogen bonds as well as C—H⋯Cl interactions. The layers stack along the c-axis direction, being connected by C—H⋯.π contacts.
Partial Text
For background to the use of l-serine derivatives in anti-tumour therapy, see: Jiao et al. (2009 ▶); Yakura et al. (2007 ▶). For background to N-acylhydrazone derivatives from l-serine for anti-tumour testing, see: Pinheiro et al. (2010 ▶, 2011a ▶,b ▶); de Souza et al. (2010 ▶); Howie et al. (2011 ▶).
Source:
http://doi.org/10.1107/S1600536811024895