Add time:08/01/2019         Source:sciencedirect.com

A resolution method has been elaborated for mandelic acid and 2-chloromandelic acid applying the (R)-(−)-3-(aminomethyl)-5-methylhexanoic acid (Pregabalin) as the resolving agent. The formation of the corresponding diastereomers was kinetically controlled. This observation was rationalized by the behavior of enantiomeric mixtures of mandelic acid, 2-chloromandelic acid, and 3-(aminomethyl)-5-methylhexanoic acid. It was found that the eutectic composition of Pregabalin influenced the diastereomeric excess of the diastereomers formed under kinetic control.

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