Syntheses of (S)- and (R)-dihydromethysticin from two yeast-reduction products, which can be prepared from one racemic compound
作者:Kento Tamada、Hisashi Nishiwaki、Satoshi Yamauchi
DOI:10.1016/j.phytol.2024.02.001
日期:2024.4
Biologically active ()-Dihydromethysticin (()-) with high enantiomeric purity (>99%ee) was synthesized from the optically active yeast-reduction product, (1 ,2 )-methyl 2-hydroxycyclohexyl acetate (), through the introduction of the 3,4-methylenedioxybenzyl group, Beayer-Villiger oxidation, and conversion to its enolate. Moreover, ()-Dihydromethysticin (()-) with high enantiomeric purity (>99%ee) was
以光学活性酵母还原产物乙酸(1,2)-甲基2-羟基环己酯()为原料,通过引入3,4-亚甲二氧基苄基、Beayer-Villiger 氧化以及转化为其烯醇化物。此外,从光学活性酵母还原产物(1 ,5 )− 2-氧杂双环[3.3.0]辛烷-3-合成了具有高对映体纯度(>99%ee)的()-二氢迷幻素(()-)。一个(),采用与()-相同的合成方法。发现这两种对映体的抗真菌活性都很弱。