Acta Cryst. (2011). E67, o1888-o1889  [ doi:10.1107/S1600536811025293 ]

tert-Butyl N-((1S)-2-hydroxy-1-{N'-[(E)-2-hydroxy-4-methoxybenzylidene]hydrazinecarbonyl}ethyl)carbamate

J. L. Wardell, M. V. N. de Souza, A. C. Pinheiro, E. R. T. Tiekink and S. M. S. V. Wardell

Abstract: The molecule of the title compound, C₁₆H₂₃N₃O₆, is twisted about the chiral C atom with the dihedral angle formed between the amide residues being 76.9 (3)°. Overall, the molecule is curved with the terminal organic groups lying to the same side. The conformation about the imine bond [1.291 (5) Å] is E and an intramolecular O-HN hydrogen bond generates an S(6) ring. In the crystal, O-HO and N-HO hydrogen bonds involving the hydroxy, amine and carbonyl groups lead to the formation of supramolecular layers, which stack along the c-axis direction.

Online 2 July 2011

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