Crystal structure of a new racemate showing Preferential Enrichment: evidence for the existence as a racemic mixed crystal composed of the two enantiomers
aGraduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan bTaiho Pharmaceutical Co., Ltd., Tokyo, Japan
Abstract:
With the use of X-ray diffraction analysis, new racemate 4 showing Preferential Enrichment has been found to exist as a fairly ordered racemic mixed crystal composed of the two enantiomers in the crystalline state.