Synthesis and evaluation of the cytotoxicities of neoflavenes

Sie Rong Li, Hsing Ming Chen, Po Yuan Chen, Jui Chi Tsai, Liang Yeu Chen, Eng Chi Wang, Yi Ting Huang, Yun Chen Wei, Pei Jung Lu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The synthesis of neoflavene and neoflavenes with methoxy substituents at different positions are described. As starting materials, various salicylaldehydes were run through sequential reactions such as O-allylation, Grignard reaction, oxidation, Wittig reaction, and ring-closing metathesis to yield the target neoflavenes in good yield. Among the prepared neoflavenes, 7-methoxy-4′-methoxyneoflavene (6e) and 8-methoxy-4′- methoxyneoflavene (6f) exhibiting potential cell toxicities against various cells were disclosed. In particular, 6f which exhibited an IC50 value of 6.5 ± 2.0 and 5.1 ± 1.1 μM against gastric carcinoma and lung carcinoma cells in vitro was found, respectively. Meanwhile, the structure and activity relationship of our synthesized neoflavenes is further discussed briefly.

Original languageEnglish
Pages (from-to)923-932
Number of pages10
JournalJournal of the Chinese Chemical Society
Issue number4
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Chemistry(all)


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