Synthesis-guided structure revision of the monoterpene alcohol isolated from <i>Mentha haplocalyx</i>
作者:Shunsuke Konishi、Naoki Mori、Hirosato Takikawa、Hidenori Watanabe
DOI:10.1080/09168451.2018.1549936
日期:2019.3.4
The monoterpene isolated from Mentha haplocalyx, 3,3,5-trimethyl-2-oxabicyclo[2.2.2]oct-5-en-4-ol, was synthesized according to its proposed structure. However, the NMR data of the synthetic sample were not in agreement with those reported for the natural product. After considerable efforts, the genuine structure was confirmed as (1R*,2R*)-4-(1'-hydroxy-1'-methylethyl)-1-methylycyclohex-3-ene-1,2-diol
根据拟议的结构,合成了从薄荷薄荷3,3,5-三甲基-2-氧杂双环[2.2.2] oct-5-en-4-ol中分离出的单萜。但是,合成样品的NMR数据与天然产物的NMR数据不一致。经过大量的努力,证实其真实结构为(1R *,2R *)-4-(1'-羟基-1'-甲基乙基)-1-甲基环己基-3-烯-1,2-二醇。