4.6 Article

Natural product based inhibitors of the thioredoxin-thioredoxin reductase system

Journal

ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 2, Issue 11, Pages 1651-1658

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/b402431a

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Funding

  1. NCI NIH HHS [U19CA-52995] Funding Source: Medline
  2. NATIONAL CANCER INSTITUTE [U19CA052995] Funding Source: NIH RePORTER

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Spiroketal naphthodecalins are readily assembled by Barton's base mediated Ullmann binaphthyl ether coupling, Dakin reactions and hypervalent iodine spirocyclization. The core structures can be further diversified by enone addition and Stille coupling reactions. Nanomolar inhibitors for the Trx/TrxR redox control system were prepared by this approach and compared to series of natural product isolates. Cytotoxicity in MCF-7 cell assays ranged from an IC50 of 1.6 to > 100 muM.

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