科研之友
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摘要
The asymmetric total syntheses of deshydroxytetramethylcupressuflavone and desmethylkotanin and the synthesis of a key intermediate in the previous synthesis of hibarimicinone are described using an axially chiral biarylboronic acid, prepared by the diastereomeric resolution of the corresponding rac-boronic acid, as a common intermediate. Conversion of the boronic acid moiety into either a hydrogen atom or a hydroxy group by protodeboronation or oxidation enabled us to complete the total syntheses of deshydroxytetramethylcupressuflavone and desmethylkotanin and synthesis of a key intermediate in the previous total synthesis of hibarimicinone, respectively.
- 出版日期2016-2-18
