Bisbakuchiols A and B, novel dimeric meroterpenoids from Psoralea corylifolia

Cheng Zhu Wu, Xing Fu Cai, Nguyen Tien Dat, Seong Su Hong, Ah Reum Han, Eun Kyoung Seo, Bang Yeon Hwang, Ji Xing Nan, Dongho Lee, Jung Joon Lee

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Two novel dimeric meroterpenoids, bisbakuchiols A and B, along with (S)-bakuchiol were isolated from the seeds of Psoralea corylifolia L. (Fabaceae). Bisbakuchiols A and B contain an unprecedented dimeric meroterpenoid skeleton in which two meroterpenes are linked through a dioxane bridge. All compounds were evaluated for their potential to inhibit hypoxia-inducible factor-1 (HIF-1) activation induced by hypoxia in a HIF-1-mediated reporter gene assay in AGS human gastric cancer cells. (S)-Bakuchiol inhibited hypoxic activation of HIF-1 with an IC50 value of 6.1 μM.

Original languageEnglish
Pages (from-to)8861-8864
Number of pages4
JournalTetrahedron Letters
Issue number50
StatePublished - 10 Dec 2007

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2006-311-E00588 to D. Lee) and by a Research Grant (PF06204-00 to J. J. Lee) from Plant Diversity Research Center of 21st Frontier Research Program funded by the Korean Ministry of Science and Technology. We thank the Korea Basic Science Institute for providing certain instruments used in this study.


  • Fabaceae
  • Hypoxia-inducible factor-1
  • Meroterpenoid
  • Psoralea corylifolia


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