Volume 67 Received 30 August 2011 | ||||||||||
| ||||||||||
aDepartment of Chemistry, Chungnam National University, Daejeon 305-764, Republic of Korea, and bDepartment of Food Science and Technology, Chungnam National University, Daejeon 305-764, Republic of Korea
Correspondence e-mail: skkang@cnu.ac.kr
In the title compound, C16H18N2O3, the dihedral angle between the 4-methoxyphenyl ring and the urea group is 35.6 (2) °. The H atoms of the urea NH groups are positioned syn to each other. In the crystal, intermolecular N-H
O and O-H
O hydrogen bonds link the molecules into a two-dimensional array in the ac plane; the carbonyl-O atom is trifurcated.
For general background to melanin, see: Prota (1988
). For the development of potent inhibitory agents of tyrosinase, see: Khan et al. (2006
); Kojima et al. (1995
); Cabanes et al. (1994
); Son et al. (2000
); Iida et al. (1995
).
|
|
|
| |||||||||||||||||||||||||||
Data collection: SMART (Bruker, 2002
); cell refinement: SAINT (Bruker, 2002
); 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: WinGX publication routines (Farrugia, 1999
).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: TK2785 ).
We wish to thank the DBIO company for partial support of this work.
Bruker (2002). SAINT and SMART. Bruker AXS Inc., Madison, Wisconsin, USA.
Cabanes, J., Chazarra, S. & Garcia-Carmona, F. (1994). J. Pharm. Pharmacol. 46, 982-985.
![[PubMed]](../../../../../../logos/pubmedborder.gif)
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
![[details]](../../../../../../j/graphics/details.gif)
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837-838.
![[details]](../../../../../../j/graphics/details.gif)
Iida, K., Hase, K., Shimomura, K., Sudo, S. & Kadota, S. (1995). Planta Med. 61, 425-428.
![[ISI]](../../../../../../logos/isiborder.gif)
Khan, K. M., Mughal, U. R., Khan, M. T. H., Perveen, S., Ullah, Z. & Choudhary, M. I. (2006). Bioorg. Med. Chem. 14, 344-351.
![[ChemPort]](../../../../../../logos/chemportborder.gif)
Kojima, S., Yamaguch, K., Morita, K., Ueno, Y. & Paolo, R. (1995). Biol. Pharm. Bull. 18, 1076-1080.
![[PubMed]](../../../../../../logos/pubmedborder.gif)
Prota, G. (1988). Med. Res. Rev. 8, 525-556.
![[ISI]](../../../../../../logos/isiborder.gif)
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
![[details]](../../../../../../a/graphics/details.gif)
Son, S. M., Moon, K. D. & Lee, C. Y. (2000). J. Agric. Food Chem. 48, 2071-2074.
![[ChemPort]](../../../../../../logos/chemportborder.gif)