Synthesis of some D-homo-18-norestrone derivatives

  • G. P. Verkholetova
  • I. V. Torgov
Organic and Biological Chemistry
  • 17 Downloads

Summary

  1. 1.

    Some reactions of the D-homo-18-nor steroid diketones (III) and (IV) were investigated. For the diketone (IV) ethynylation proceeds selectively with formation of the 17aα-alcohol (V), the structure of which was proved. By hydrogenation and Kizhner reduction of the ketol (V) 17aβ -vinyl-D-homo-18-norestra-1,3,5,9-tetraene-3,17aα-diol (XV) was obtained.

     
  2. 2.

    On ketalization of the diketones (II) and (IV) the same 17a-monoketal (XVII) was formed with inversion at C14 and migration of the double bond. By Kizhner reduction and subsequent hydrolysis (XVII) was converted into 3-hydroxy-D-homo-18-nor-14β -estra-1,3,5,8(9)-tetraen-17a-one (XXII). By the same route, but with hydrogenation of the intermediate ketal (XXI), 3-hydroxy-D-homo-19-nor-9β,14β -estra-1,3,5-trien-17a-one (XXIV) was obtained.

     

Keywords

Hydrogenation Hydrolysis Migration Steroid Double Bond 

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Copyright information

© Consultants Bureau 1963

Authors and Affiliations

  • G. P. Verkholetova
    • 1
  • I. V. Torgov
    • 1
  1. 1.Institute for the Chemistry of Natural CompoundsAcademy of SciencesUSSR

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