Volume 67 Received 25 February 2011 | ||||||||||
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aCollege of Chemisty, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
Correspondence e-mail: syzhao8@dhu.edu.cn
There are four molecules in the asymmetric unit of the title compound, C16H17N3O4, in which the dihedral angles between the indole ring system and maleimide ring are 4.5 (3), 8.3 (3), 8.4 (2) and 10.4 (2)°. In the crystal, molecules are linked by numerous N-H
O and O-H
O hydrogen bonds, generating a three-dimensional network.
For general background to indolylmaleimides and their biological properties, see: Vegesna et al. (1998)
; Hu (1996
); Zhao et al. (2008
). For the preparation, see: Zhao et al. (2010
).
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Data collection: SMART (Bruker, 2003
); cell refinement: SAINT (Bruker, 2003
); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: SHELXTL (Sheldrick, 2008
); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB5807 ).
We thank the Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry of China (No. [2008]890) for financial support.
Bruker (2003). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Hu, H. (1996). Drug Discov. Today, 1, 438-447. ![[ChemPort]](../../../../../../logos/chemportborder.gif)
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
![[details]](../../../../../../a/graphics/details.gif)
Vegesna, R. V., Wu, H. L., Mong, S. & Crooke, S. T. (1998). Mol. Pharmacol. 33, 537-542.
Zhao, S. Y., Jiang, D. F., Yang, Y. W. & Shao, Z. Y. (2010). Lett. Org. Chem. 7, 144-148.
Zhao, S. Y., Shao, Z. Y., Qin, W. M. & Zhang, D. Q. (2008). Chin. J. Org. Chem. 28, 1128-1137.