Synthesis of gamma- and delta-lactones from 1alpha-hydroxy-5,6-trans-vitamin D3 by ring-closing metathesis route and their reduction with metal hydrides

Steroids. 2007 Jun;72(6-7):552-8. doi: 10.1016/j.steroids.2007.03.005. Epub 2007 Mar 18.

Abstract

New synthetic pathway towards 19-functionalized derivatives of 1alpha-hydroxy-5,6-trans-vitamin D3 was described. Ring-closing metathesis (RCM) of 1alpha-hydroxy-5,6-trans-vitamin D3 1-omega-alkenoates was a key-step. Hydride reduction of resulting lactones led to the new vitamin D3 analogues.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cyclization
  • Hydroxycholecalciferols / chemistry*
  • Lactones / chemical synthesis*
  • Magnetic Resonance Spectroscopy
  • Metals / chemistry*
  • Spectrometry, Mass, Electrospray Ionization
  • Spectrophotometry, Infrared

Substances

  • Hydroxycholecalciferols
  • Lactones
  • Metals