Enantiodivergent syntheses of (+)- and (−)-1-(2,6-dimethylphenoxy)propan-2-ol: A way to access (+)- and (−)-mexiletine from D-(+)-mannitol
作者:Avrajit Manna、Sandip Chatterjee、Ipsita Chakraborty、Tanurima Bhaumik
DOI:10.1016/j.carres.2019.107892
日期:2020.1
Chiron approach was used to acquire optically pure (R)- and (S)-1-(2,6-dimethylphenoxy)propan-2-ol, immediate precursors of (S)- and (R)-mexiletines, respectively. Two different routes were followed from a D-mannitol-derived optically pure common precursor to get the enantiomeric alcohols separately. Comparison of their specific rotation values with the corresponding literature values as well as exact
Chiron方法用于获得光学纯的(R)-和(S)-1-(2,6-二甲基苯氧基)丙-2-醇,分别是(S)-和(R)-美西律的直接前体。从D-甘露醇衍生的光学纯的通用前体中遵循两种不同的途径,分别得到对映体醇。将它们的比旋光度值与相应的文献值进行比较,以及它们的CD曲线之间的精确镜像关系证明了它们的高对映体纯度。然后将这些醇以有效的一步法而不是文献中描述的两个步骤转化为相应的胺类药物。