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Crystal structure of loteprednol etabonate Form II, C24H31ClO7

Published online by Cambridge University Press:  19 January 2021

James A. Kaduk Open the ORCID record for James A. Kaduk [Opens in a new window] ,
Amy M. Gindhart  and
Thomas N. Blanton Open the ORCID record for Thomas N. Blanton [Opens in a new window]
James A. Kaduk*
Affiliation:
Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois60616, USA North Central College, 131 S. Loomis St., Naperville, Illinois60540, USA
Amy M. Gindhart
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania19073-3273, USA
Thomas N. Blanton
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania19073-3273, USA
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

The crystal structure of loteprednol etabonate Form II has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Loteprednol etabonate Form II crystallizes in the space group P21 (#4) with a = 11.96312(6), b = 14.91862(5), c = 6.75715(3) Å, β = 94.1584(3)°, V = 1202.796(6) Å3, and Z = 2. The crystal structure is characterized by herringbone layers in the ab-plane. The anisotropic displacement ellipsoid of the Cl atom is not oriented in a way which corresponds to a chemically sensible motion of this atom. The sample suffered damage in the X-ray beam, probably involving photolysis of the C–Cl bond. The most prominent hydrogen bond is the O–H⋯O hydrogen bond between the hydroxyl group and the carbonyl group of the steroid A ring. This hydrogen bond links the molecules into C1,1(9) chains along the b-axis. The powder pattern is included in the Powder Diffraction File™ (PDF®) as entry 00-066-1602; this study will allow inclusion of the atomic coordinates to the PDF entry.

Keywords

loteprednol etabonateAlrexpowder diffractionRietveld refinementdensity functional theory
Type
New Diffraction Data
Information
Powder Diffraction , Volume 36 , Issue 1 , March 2021 , pp. 50 - 55
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of International Centre for Diffraction Data

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References

Altomare, A., Cuocci, C., Giacovazzo, C., Moliterni, A., Rizzi, R., Corriero, N., and Falcicchio, A. (2013). “EXPO2013: a kit of tools for phasing crystal structures from powder data,” J. Appl. Crystallogr. 46, 1231–1235.CrossRefGoogle Scholar
Bernstein, J., Davis, R. E., Shimoni, L., and Chang, N. L. (1995). “Patterns in hydrogen bonding: functionality and graph set analysis in crystals,” Angew. Chem. Int. Ed. Engl. 34(15), 1555–1573.CrossRefGoogle Scholar
Bravais, A. (1866). Etudes Cristallographiques (Gauthier Villars, Paris).Google Scholar
Bruno, I. J., Cole, J. C., Kessler, M., Luo, J., Motherwell, W. D. S., Purkis, L. H., Smith, B. R., Taylor, R., Cooper, R. I., Harris, S. E., and Orpen, A. G. (2004). “Retrieval of crystallographically-derived molecular geometry information,” J. Chem. Inf. Sci. 44, 2133–2144.CrossRefGoogle ScholarPubMed
Dassault Systèmes (2018). Materials Studio 2019 (BIOVIA, San Diego, CA).Google Scholar
David, W. I. F., Shankland, K., van de Streek, J., Pidcock, E., Motherwell, W. D. S., and Cole, J. C. (2006). “DASH: a program for crystal structure determination from powder diffraction data,” J. Appl. Crystallogr. 39, 910–915.CrossRefGoogle Scholar
Donnay, J. D. H. and Harker, D. (1937). “A new law of crystal morphology extending the law of bravais,” Am. Mineral. 22, 446–447.Google Scholar
Dovesi, R., Orlando, R., Erba, A., Zicovich-Wilson, C. M., Civalleri, B., Casassa, S., Maschio, L., Ferrabone, M., De La Pierre, M., D-Arco, P., Noël, Y., Causà, M., and Kirtman, B. (2014). “CRYSTAL14: a program for the ab initio investigation of crystalline solids,” Int. J. Quantum Chem. 114, 1287–1317.CrossRefGoogle Scholar
Etter, M. C. (1990). “Encoding and decoding hydrogen-bond patterns of organic compounds,” Acc. Chem. Res. 23(4), 120–126.CrossRefGoogle Scholar
Friedel, G. (1907). “Etudes sur la loi de Bravais,” Bull. Soc. Fr. Mineral. 30, 326–455.Google Scholar
Gates-Rector, S. and Blanton, T. N. (2019). “The powder diffraction file: a quality materials characterization database,” Powd. Diffr. 34(4), 352–360.CrossRefGoogle Scholar
Gatti, C., Saunders, V. R., and Roetti, C. (1994). “Crystal-field effects on the topological properties of the electron-density in molecular crystals - the case of urea,” J. Chem. Phys. 101, 10686–10696.CrossRefGoogle Scholar
Groom, C. R., Bruno, I. J., Lightfoot, M. P., and Ward, S. C. (2016). “The Cambridge Structural Database,” Acta Crystallogr. Sect. B: Struct. Sci., Crystallogr. Eng. Mater. 72, 171–179.CrossRefGoogle ScholarPubMed
Hirshfeld, F. L. (1977). “Bonded-atom fragments for describing molecular charge densities,” Theor. Chem. Acta 44, 129–138.CrossRefGoogle Scholar
Kaduk, J. A., Crowder, C. E., Zhong, K., Fawcett, T. G., and Suchomel, M. R. (2014). “Crystal structure of atomoxetine hydrochloride (strattera), C17H22NOCl,” Powd. Diffr. 29(3), 269–273.CrossRefGoogle Scholar
Lee, P. L., Shu, D., Ramanathan, M., Preissner, C., Wang, J., Beno, M. A., Von Dreele, R. B., Ribaud, L., Kurtz, C., Antao, S. M., Jiao, X., and Toby, B. H. (2008). “A twelve-analyzer detector system for high-resolution powder diffraction,” J. Synch. Rad. 15(5), 427–432.CrossRefGoogle ScholarPubMed
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J., and Wood, P. A. (2008). “Mercury CSD 2.0 – new features for the visualization and investigation of crystal structures,” J. Appl. Crystallogr. 41, 466–470.CrossRefGoogle Scholar
MDI (2018). Jade 9.8 (Materials Data Inc., Livermore, CA).Google Scholar
Peintinger, M. F., Vilela Oliveira, D., and Bredow, T. (2013). “Consistent Gaussian basis sets of triple-zeta valence with polarization quality for solid-state calculations,” J. Comput. Chem. 34, 451–459.CrossRefGoogle ScholarPubMed
Pinto, E. (2008). “Sustained release of a soft glucocorticoid loteprednol etabonate using PLA microspheres for the prevention of islet transplantation rejection,” Ph.D. dissertation, University of Florida, Gainesville, FL, USA.Google Scholar
Rammohan, A. and Kaduk, J. A. (2018). “Crystal structures of alkali metal (group 1) citrate salts,” Acta Crystallogr. Sect. B: Crystallogr. Eng. Mater. 74, 239–252. doi:10.1107/S2052520618002330.CrossRefGoogle ScholarPubMed
Shields, G. P., Raithby, P. R., Allen, F. H., and Motherwell, W. S. (2000). “The assignment and validation of metal oxidation states in the cambridge structural database,” Acta Crystallogr. Sec. B: Struct. Sci. 56(3), 455–465.CrossRefGoogle ScholarPubMed
Silk Scientific (2013). UN-SCAN-IT 7.0 (Silk Scientific Corporation, Orem, UT).Google Scholar
Sykes, R. A., McCabe, P., Allen, F. H., Battle, G. M., Bruno, I. J., and Wood, P. A. (2011). “New software for statistical analysis of cambridge structural database data,” J. Appl. Crystallogr. 44, 882–886.CrossRefGoogle ScholarPubMed
Toby, B. H. and Von Dreele, R. B. (2013). “GSAS II: the genesis of a modern open source all purpose crystallography software package,” J. Appl. Crystallogr. 46, 544–549.CrossRefGoogle Scholar
Turner, M. J., McKinnon, J. J., Wolff, S. K., Grimwood, D. J., Spackman, P. R., Jayatilaka, D., and Spackman, M. A. (2017). CrystalExplorer17 (University of Western Australia). Available at: http://hirshfeldsurface.net.Google Scholar
van de Streek, J. and Neumann, M. A. (2014). “Validation of molecular crystal structures from powder diffraction data with dispersion-corrected density functional theory (DFT-D),” Acta Crystallogr. Sect. B: Struct. Sci., Crystallogr. Eng. Mater. 70(6), 1020–1032.CrossRefGoogle Scholar
Wang, J., Toby, B. H., Lee, P. L., Ribaud, L., Antao, S. M., Kurtz, C., Ramanathan, M., Von Dreele, R. B., and Beno, M. A. (2008). “A dedicated powder diffraction beamline at the advanced photon source: commissioning and early operational results,” Rev. Sci. Instrum. 79, 085105.CrossRefGoogle ScholarPubMed
Wang, S., Han, K., and Xiu, J. (2015a). “Novel loteprednol etabonate crystalline form and preparation thereof,” Chinese Patent Application CN10682952A.Google Scholar
Wang, S., Han, K., and Xiu, J. (2015b). “Loteprednol etabonate monohydrate as well as crystal form and preparation thereof,” Chinese Patent Application CN10682953A.Google Scholar
Wavefunction, Inc. (2018). Spartan '18 Version 1.2.0 (Wavefunction Inc., Irvine, CA).Google Scholar
Wheatley, A. M., Kaduk, J. A., Gindhart, A. M., and Blanton, T. N. (2018). “Crystal structure of bretylium tosylate (Bretylol®), C18H24BrNO3S,” Powd. Diffr. 33(4), 298–302.CrossRefGoogle Scholar