Ring Expansion Leads to a More Potent Analogue of Ipomoeassin F.

Ring Expansion Leads to a More Potent Analogue of Ipomoeassin F.
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DOI:
10.1021/acs.joc.0c01659
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发表时间:
2020-12-18
期刊:
The Journal of organic chemistry
影响因子:
--
通讯作者:
Shi WQ
Shi WQ
中科院分区:
其他
文献类型:
--
作者:
Zong G;Hu Z;Duah KB;Andrews LE;Zhou J;O'Keefe S;Whisenhunt L;Shim JS;Du Y;High S;Shi WQ

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Two new ring-size-varying analogues (2 and 3) of ipomoeassin F were synthesized and evaluated. Improved cytotoxicity (IC50: from 1.8 nM) and in vitro protein translocation inhibition (IC50: 35 nM) derived from ring expansion imply that the binding pocket of Sec61α (isoform 1) can accommodate further structural modifications, likely in the fatty acid portion. Streamlined preparation of the key diol intermediate 5 enabled gram-scale production, allowing us to establish that ipomoeassin F is biologically active in vivo (MTD: ∼3 mg/kg).
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