Concise synthesis of 23-hydroxylated vitamin D3 metabolites

J Steroid Biochem Mol Biol. 2019 Feb:186:161-168. doi: 10.1016/j.jsbmb.2018.10.010. Epub 2018 Oct 24.

Abstract

Three 23-hydroxylated vitamin D3 derivatives, which are metabolites of 25-hydroxyvitamin D3 produced by CYP24A1 and a related diastereomer, were efficiently synthesized. Each C23 hydroxy unit was constructed by the Claisen condensation reaction with ethyl acetate or the Grignard reaction with 2-methylallymagnesium chloride. Stereochemistry at the C23 position was determined by a modified Mosher's method. The triene structures were constructed by the Wittig-Horner reaction utilizing the A-ring phosphine oxide moiety.

Keywords: 23-Hydroxyvitamin D(3); Modified Mosher’s method; Synthesis; Vitamin D(3) metabolite.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcifediol / analogs & derivatives
  • Calcifediol / metabolism*
  • Chemistry Techniques, Synthetic
  • Dihydroxycholecalciferols / chemical synthesis*
  • Dihydroxycholecalciferols / chemistry
  • Hydroxycholecalciferols / chemical synthesis*
  • Hydroxycholecalciferols / chemistry
  • Stereoisomerism
  • Vitamin D3 24-Hydroxylase / metabolism

Substances

  • Dihydroxycholecalciferols
  • Hydroxycholecalciferols
  • 23,25-dihydroxyvitamin D3
  • 23,25,26-trihydroxyvitamin D3
  • Vitamin D3 24-Hydroxylase
  • Calcifediol