RSC Advances
Paper
methods and rened on all unique F2 values with anisotropic 10 (a) M. A. Cardona and D. C. Magri, Tetrahedron Lett., 2014,
non-H atoms and constrained riding isotropic H atoms. The
soware used was Rigaku CrystalClear for data collection,
APEX2 38 for integration and absorption corrections, OLEX2 39
and the SHELX 2013 40 for structure solution and renement,
and DIAMOND41 for graphics. Full crystallographic experi-
mental details are provided as ESI,† together with a list of bond
55, 4559; (b) J. Jose and K. Burgess, J. Org. Chem., 2006, 71,
7835; (c) N.-H. Ho, R. Weissleder and C.-H. Tung,
´
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C. Bouteiller, M. Massonneau, P.-Y. Renard and A. Romieu,
Tetrahedron Lett., 2006, 47, 8279; (e) R. M. El-Shishtawy
and P. Almeida, Tetrahedron, 2006, 62, 7793.
distances and angles (Tables S1–S5†). CCDC 1432856 contains 11 (a) N. Singh, N. Kaur, J. Dunn, M. MacKay and J. F. Callan,
the supplementary crystallographic data for this paper.
Tetrahedron Lett., 2009, 50, 953; (b) S. K. Sahoo, D. Sharma,
R. K. Bera, G. Crisponi and J. F. Callan, Chem. Soc. Rev.,
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Acknowledgements
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Complexes, ed. B. Meunier, Imperial College Press,
London, 2000; (b) D. C. Magri and M. S. Workentin, Org.
Biomol. Chem., 2003, 1, 3418.
13 (a) D. Galaris, V. Skiada and A. Barbouti, Cancer Lett., 2008,
266, 21; (b) X. Huang, Mutat. Res., 2003, 533, 153.
14 (a) Y. Urano, D. Asanuma, Y. Hama, Y. Koyama, T. Barrett,
M. Kamiya, T. Nagano, T. Watanabe, A. Hasegawa,
P. L. Choyke and H. Kobayashi, Nat. Med., 2009, 15, 104;
(b) H. Lee, W. Akers, K. Bhushan, S. Bloch, G. Sudlow,
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D. C. Magri, New J. Chem., 2013, 37, 148; (c) J. C. Spiteri,
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Financial support is acknowledged from the University of Malta,
the Strategic Educational Pathways Scholarship (STEPS) part-
nanced by the European Social Fund (ESF) under Opera-
tional Programme II – Cohesion Policy 2007–2013, and the
European Cooperation in Science and Technology (COST Action
CM1005 “Supramolecular Chemistry in Water”). The authors
thank Diamond Light Source for access to beamline I19. We
thank the reviewers for helpful comments and insightful
references.
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