Department of Chemistry and Biochemistry , University of California , Santa Barbara , California 93110 , United States.
J Org Chem. 2018 Aug 17;83(16):9492-9496. doi: 10.1021/acs.joc.8b01214. Epub 2018 Jun 22.
Protecting-group-free total synthesis of (+)-guadinomic acid is reported using δ-valerolactone as a readily available starting material. The protocol utilizes the recent hydroxyl-directed guanidylation of unactivated alkenes as an approach for direct stereoselective incorporation of the guanidine unit furnishing the natural product in 7 steps.
本文报道了一种使用 δ-戊内酯作为易得起始原料的、无保护基的(+)-瓜环酸的全合成方法。该方案利用最近报道的未活化烯烃的羟基导向胍基化反应作为直接立体选择性引入胍基单元的方法,以 7 步反应得到天然产物。