First enantioselective synthesis and determination of the absolute configuration of natural (+)-dehydro-β-monocyclonerolidol
作者:Elie Palombo、Gérard Audran、Honoré Monti
DOI:10.1016/s0040-4039(03)01562-4
日期:2003.8
The enantioselective synthesis and determination of the absolute configuration of (+)-dehydro-β-monocyclonerolidol, a natural product isolated from the liverwort P. subobtusa, has been achieved starting from (+)-karahana lactone as an enantiopure building block. Furthermore, the methodology applied provided a new approach towards the known (+)-γ-cyclohomocitral, a key intermediate in the sequence,
从(+)-卡拉汉纳内酯作为对映纯结构单元开始,已经实现了从(+)-卡拉汉纳内酯分离的天然产物(+)-脱氢-β-单环神经醇的对映体选择性合成和绝对构型的确定。此外,所采用的方法为已知的(+)-γ-环同源物(序列中的关键中间体)和天然的(+)-pallescensone提供了新的方法。