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Photochemische Studien, 65. Mitt.: Untersuchungen zur Photostabilität von Ethisteron und Norethisteron sowie deren Kristallstrukturen

Photochemical studies, part 65: Investigations on the photostability of ethisterone and norethisterone and their crystal structures

  • Organische Chemie Und Biochemie
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Summary

UV irradiation of ethisterone (1) and norethisterone (2) in the solid state yielded one photoproduct each: 17,20-epoxy-17ξH-pregna-4,20-diene-3-one (3) and the dimerization product 17′-hydroxy-(13βH, 17′βH)-13,17-seco-[20, 21]bipregnayl-4,20,4′-trien-20′-in-3,17,3′-trione (4), respectively. Compounds3 and4 were characterized by their spectral and analytical data and further confirmed by the molecular packing of1 and2 in the crystal, as shown by X-ray crystallography.

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Literatur

  1. Photochemische Studien, 64. Mitt: [3]; zugleich Acetylenchemie, 30. Mitt.; 29. Mitt: Reisch J., Gunaherath G. M. K. B. (im Druck) J. Heterocycl. Chem.

  2. Teil der Diplomarbeit. Universität, Münster 1990

  3. Reisch J., Iranshahi L., Ekiz-Gücer N. (1992) Liebigs Ann. Chem.: 1199; u. dort zit. Lit.

  4. DAB 10 (1991)

  5. Ekiz-Gücer N., Zappel J., Reisch J. (1991) Pharm. Acta Helv.66: 2

    Google Scholar 

  6. Bhacca N. S., Johnson L. F., Shoolery J. N. (1962) NMR-Spectra Catalog Ed. 1/2. National Press, USA

    Google Scholar 

  7. Byrn S. (1982) Solid State Chemistry of Drugs. Academic Press, New York, London, S. 267

    Google Scholar 

  8. Takács M., Reisch J., Gergely-Zobin A., Ekiz-Gücer N. (1990) Sci. Pharm.58: 289

    Google Scholar 

  9. Sheldrick G. M. (1989) SHELXTL PLUS. Siemens Analytical X-Ray Instruments, Madison, Wisconsin, USA

    Google Scholar 

  10. Ibers J. A., Hamilton W. C. (1974) International Tables for X-Ray Crystallography, Bd. 4. Kynoch Press, Birmingham

    Google Scholar 

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Reisch, J., Zappel, J., Henkel, G. et al. Photochemische Studien, 65. Mitt.: Untersuchungen zur Photostabilität von Ethisteron und Norethisteron sowie deren Kristallstrukturen. Monatsh Chem 124, 1169–1175 (1993). https://doi.org/10.1007/BF00810025

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  • DOI: https://doi.org/10.1007/BF00810025

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