Stereochemically versatile synthesis of the C1-C12 fragment of tedanolide C.
Stereochemically versatile synthesis of the C1-C12 fragment of tedanolide C.
复制标题
泰那内酯 C 的 C1-C12 片段的立体化学通用合成。
DOI:
10.1021/ol300194x
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发表时间:
2012
期刊:
影响因子:
5.2
通讯作者:
Daub,MaryE
中科院分区:
文献类型:
--
作者:
Smith,ThomasE;Fink,SarahJ;Levine,ZebulonG;McClelland,KeraniA;Zackheim,AdrianA;Daub,MaryE
A flexible synthesis of the C1–C12 fragment of Tedanolide C has been accomplished in eight steps from 2-methyl-2,4-pentadienal. Asymmetric hydroformylation of a 1,3-diene allows for the late-stage generation of either C10 epimer with complete catalyst control. Diastereoselective addition of an isobutyryl β-ketoester dianion to an α,β-disubstituted chiral aldehyde sets the C5 stereochemistry while installing the geminal dimethyl unit. Differential protection of asyn-1,3-diol is performed as a highly efficient single-pot operation.