Received 7 November 2013
The title compound, C10H13NO4, is essentially planar, with an r.m.s. deviation of 0.049 Å. An intramolecular C-HO hydrogen bond occurs and the amino group forms an intramolecular N-HOester hydrogen bond; the other H atom forms an intermolecular N-HOcarbonyl hydrogen bond, leading to the formation of a helical chain that runs along the b-axis direction.
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: WinGX (Farrugia, 2012).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NG5347 ).
The University of the Witwatersrand and the Molecular Sciences Institute are thanked for providing the infrastructure and financial support. Special thanks go to Dr Andreas Lemmerer of the University of the Witwatersrand for his contributions and insights toward this project. TNH wishes to thank the University of the Witwatersrand research committee for a postdoctoral fellowship.
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