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Synlett 1996; 1996(9): 911-912
DOI: 10.1055/s-1996-5589
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A New A-ring Precursor for 19-Nor-1α,25-dihydroxyvitamin D3 Analogues

 Wu-Yong, Maurits Vandewalle*
  • *University of Gent, Department of Organic Chemistry, Laboratory for Organic Synthesis, Krijgslaan, 281 (S.4), B-9000 Gent, Belgium, Fax: (32-9) 264 49 98
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Publication Date:
31 December 2000 (online)

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The synthesis of 19-nor-vitamin D3 analogues via the enantiopure bicyclo[3,1,0]hexane precursor 5 and involving cyclovitamin precursors is described.

cyclopropanation - hydroxy group inversion - enzyme catalyzed resolution