Halichondrin B

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Halichondrin B
File:Halichondrin B.svg
style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
ChemSpider 10256208
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style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula C60H86O19
Molar mass 1111.31 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Halichondrin B is a naturally-occurring compound originally isolated from the marine sponge Halichondria okadai by Hirata and Uemura in 1986.[1] In the same report, these authors also reported the exquisite anticancer activity of halichondrin B against murine cancer cells both in culture and in in vivo studies. Halichondrin B was highly prioritized for development as a novel anticancer therapeutic by the United States National Cancer Institute [1] and, in 1991, was the original test case for identification of mechanism of action (in this case, tubulin-targeted mitotic inhibitor) by NCI's now famous but then-brand new "60-cell line screen"[2].[2] The complete chemical synthesis of halichondrin B, a large (MW = 1,110) polyether macrolide, was achieved by Yoshito Kishi and colleagues at Harvard University in 1992,[3] an achievement that ultimately enabled the discovery and development of the structurally-simplified and pharmaceutically-optimized analog eribulin (E7389, ER-086526, NSC-707389).[4][5] Eribulin is currently being investigated by Eisai Co. for the third-line treatment of advanced breast cancer in patients who have been previously treated with anthracyclines, taxanes and capecitabine, as well as a variety of other solid tumors, including non-small cell lung cancer, prostate cancer and sarcoma.[6]

References

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  1. Hirata Y, Uemura D (1986). "Halichondrins - antitumor polyether macrolides from a marine sponge". Pure Appl. Chem. 58 (5): 701–710. doi:10.1351/pac198658050701. 
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  3. Aicher TD, Buszek KR, Fang FG, Forsyth CJ, Jung SH, Kishi Y, Matelich MC, Scola PM, Spero DM, Yoon SK (1992). "Total synthesis of halichondrin B and norhalichondrin B". J. Am. Chem. Soc. 114 (8): 3162–3164. doi:10.1021/ja00034a086. 
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  5. Yu MJ, Kishi Y, Littlefield BA (2005). "Discovery of E7389, a fully synthetic macrocyclic ketone analogue of halichondrin B". In Newman DJ, Kingston DGI, Cragg, GM. Anticancer agents from natural products. Washington, DC: Taylor & Francis. ISBN 0-8493-1863-7. 
  6. "Drugs.com, Eisai Announces Change in U.S. Submission Schedule for E7389 New Drug Application". http://www.drugs.com/nda/e7389_080201.html. Retrieved on 2008-02-06.