Received 12 December 2011
aDepartment of Chemistry, School of Pharmacy, Fourth Military Medical University, Changle West Road 17, 710032, Xi-An, People's Republic of China, and bDepartment of Pharmacy, Lanzhou General Hospital of PLA, Key laboratory of the Prevention and Cure for the Plateau Environment Damage, PLA, 730050 Lanzhou Gansu, People's Republic of China
Correspondence e-mail: email@example.com
In the title compound, C16H21N2O5, the benzene ring is nearly perpendicular to the imidazole ring, making a torsion angle of 88.6 (8)°·The crystal structure is stabilized by non-classical C-HO and C-H interactions, which build up a three-dimensional network.
For the chemical and physical properties of nitronyl nitroxides, see: Osiecki & Ullman (1968). For their biological activity, see: Soule et al. (2007). For related structures, see: Wang et al. (2009); Jing et al. (2011).
Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HG5154 ).
We thank the Natural Science Foundation of China (grant No. 81001398) for financial support and Yongliang Shao (Lanzhou University) for the X-ray measurements.
Bruker (2007). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Jing, L.-L., Ma, H.-P., He, L., Fan, P.-C. & Jia, Z.-P. (2011). Acta Cryst. E67, o3503.
Osiecki, J. H. & Ullman, E. F. (1968). J. Am. Chem. Soc. 90, 1078-1079.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Soule, B. P., Hyodo, F., Matsumoto, K., Simone, N. L., Cook, J. A., Krishna, M. C. & Mitchell, J. B. (2007). Free Radic. Biol. Med. 42, 1632-1650.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Wang, H.-B., Jing, L.-L., Gao, P. & Sun, X.-L. (2009). Acta Cryst. E65, o2090.