https://www.selleckchem.com/pr....oducts/pilaralisib-x
The study of the influence of experimental conditions (reaction times, temperature, solvent or type of base, etc.) on the degree of racemization of the (R)- enantiomer is performed and shows that despite changes in the experimental conditions, the synthesis of the (R)- enantiomer is always accompanied by a racemization rate which is difficult in reducing. In parallel, (R)- and (S)-enantiomers are obtained in high enantiopurity (ee 99.5%) by preparative HPLC enantioseparation of racemate on multigram scale and characterize
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