The polycyclic ring system which forms the nucleus of a series of sesquiterpene-phenol natural products, including the antimalarial 15-oxopuupehenol, can be constructed in racemic form in four efficient steps, the last of these being a stereoselective manganese(III) acetate-mediated radical cyclisation reaction.
这个多环结构系统构成了一系列
倍半萜醇
天然产物的核心,包括
抗疟药15-氧基普普
酚,可以通过四个高效步骤在外消旋形式下构建,最后一步是采用选择性
锰(III)
醋酸盐介导的自由基环化反应。