A redox economical synthesis of bioactive 6,12-guaianolides.
A redox economical synthesis of bioactive 6,12-guaianolides.
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DOI:
10.1021/ol400904y
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发表时间:
2013-06-07
期刊:
影响因子:
5.2
通讯作者:
Brummond, Kay M.
中科院分区:
文献类型:
--
作者:
Wen, Bo;Hexum, Joseph K.;Widen, John C.;Harki, Daniel A.;Brummond, Kay M.
Syntheses of two 6,12-guaianolide analogs are reported within. The scope of the tandem allylboration/lactonization chemistry is expanded to provide a functionalized alleneyne-containing α-methylene butyrolactone that undergoes a Rh(I)-catalyzed cyclocarbonylation reaction to afford a 5-7-5 ring system. The resulting cycloadducts bear a structural resemblance to other NF-κB inhibitors such as cumambrin A and indeed were shown to inhibit NF-κB signaling and cancer cell growth.
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