Revisiting the 7,8-cis-Vitamin D3 derivatives: Synthesis, evaluating the biological activity, and study of the binding configuration

Daisuke Sawada, Shinji Kakuda, Midori Kamimura-Takimoto, Akiko Takeuchi, Yotaro Matsumoto, Atsushi Kittaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Four 7,8-cis-1α,25-dihydroxyVitamin D3 derivatives, 7,8-cis- and 7,8-cis-14-epi-1α,25-dihydroxy-19-norVitamin D3 as well as 7,8-cis- and 7,8-cis-14-epi-1α,25-dihydroxyVitamin D3 were synthesized, and their chemical stability was characterized. In our previous work, we disclosed that 14-epi-19-nortachysterol showed the unprecedented binding configuration in human Vitamin D receptor (hVDR), that is, 5,6- and 7,8-s-trans configuration. However, this configuration is variable because of the rotation at the single bond between C7 and C8. For the precise discussion of the 7,8-s-trans configuration, we designed and synthesized the 7,8-cis-locked skeleton of Vitamin D3 derivatives. Among four analogs, the 19-nor derivatives were stable at ambient temperature, and their hVDR binding affinity and co-crystallographic analysis of their hVDR complexes were studied. The other derivatives with the triene system were isomerized to corresponding preVitamin D3 and Vitamin D3.

Original languageEnglish
Pages (from-to)2838-2848
Number of pages11
Issue number22
Publication statusPublished - Jun 2 2016


  • 7,8-cis-Vitamin D
  • Vitamin D
  • Vitamin D receptor
  • X-ray cocrystallography

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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