Received 10 December 2012
aDepartment of Computer Science & Engineering, Madha Engineering College, Kundrathur, Chennai 600 069, India,bDepartment of Physics, Presidency College, Chennai 600 005, India, and cDepartment of Organic Chemistry, University of Madras, Chennai 600 025, India
Correspondence e-mail: email@example.com
In the title compound, C28H22O6, the chromeno ring system is almost planar, with a dihedral angle between the mean planes of the pyran and benzene rings of 1.87 (8)°. The pyran ring bearing the methylphenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetrasubstituted C atom as the flap. The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°. These aromatic rings are inclined to the 4-methylphenyl ring by 52.67 (9) and 66.63 (10)°, respectively. In the crystal, molecules are linked via C-HO hydrogen bonds, forming a two-dimensional network parallel to the bc plane.
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); 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 (Farrugia, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2541 ).
SA and VS thank the UGC, India, for financial support. The authors thank Dr Babu Varghese, Senior Scientific Officer, SAIF, IIT, Chennai, India, for the data collection.
Brooks, G. T. (1998). Pestic. Sci. 22, 41-50.
Bruker (2008). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Cai, S. X. (2007). Recent Patents Anticancer Drug Discov. 2, 79-101.
Cai, S. X. (2008). Bioorg. Med. Chem. Lett. 18, 603-607.
Cai, S. X., Drewe, J. & Kasibhatla, S. (2006). Curr. Med. Chem. 13, 2627-2644.
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.
Gabor, M. (1988). The Pharmacology of Benzopyrone Derivatives and Related Compounds, pp. 91-126. Budapest: Akademiai Kiado.
Hyana, T. & Saimoto, H. (1987). Jpn Patent JP 621 812 768.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Tang, Q.-G., Wu, W.-Y., He, W., Sun, H.-S. & Guo, C. (2007). Acta Cryst. E63, o1437-o1438.
Valenti, P., Da Re, P., Rampa, A., Montanari, P., Carrara, M. & Cima, L. (1993). Anticancer Drug. Des. 8, 349-360.