First synthesis of (±)-pseudohygrophorone A12, an anti-fungal cyclohexenone derivative isolated from Hygrophorus abieticola
作者:Yuzuki Yamamoto、Naoki Mori、Hidenori Watanabe、Hirosato Takikawa
DOI:10.1016/j.tetlet.2018.08.027
日期:2018.9
Pseudohygrophorones A12 and B12 are cyclohexenone derivatives isolated from Hygrophorus abieticola (Basidiomycete) as anti-phytopathogenic compounds. In this study, the first synthesis of (±)-pseudohygrophorones A12 is reported, utilizing Michael–aldol cascade reaction for constructing the 3,3-dimethyl-2,4-dioxabicyclo[3.1.1]nonan-9-one skeleton and the diastereoselective addition of alkyllithium to
假hygrophorones A 12和B 12是从松果Hygrophorus abieticola(Basidiomycete)分离得到的环己烯酮衍生物,作为抗植物病原性化合物。在这项研究中,报道了第一个合成(±)-假hygrophorones A 12的方法,利用迈克尔-奥尔多级联反应构建了3,3-二甲基-2,4-二氧杂双环[3.1.1] nonan-9-骨架和关键步骤是将烷基锂非对映选择性加成到一侧封端的酮中。