A direct semipreparative HPLC enantioseparation of two chiral thiazolidinone derivatives having cyclooxygenase-2 inhibition activity was performed on the Chiralpak IA chiral stationary phase. Semipreparative amounts of enantiopure forms were collected using acetonitrile-ethanol-trifluoroacetic acid mixtures as mobile phase. The absolute configuration of both compounds was unequivocally established by single-crystal X-ray diffraction method and correlated to the chiroptical properties of isolated enantiomers.
Semipreparative HPLC enantioseparation, chiroptical properties, and absolute configuration of two novel cyclooxygenase-2 inhibitors
MACCIONI, ELIAS;SANNA, MARIA LUISA;
2010-01-01
Abstract
A direct semipreparative HPLC enantioseparation of two chiral thiazolidinone derivatives having cyclooxygenase-2 inhibition activity was performed on the Chiralpak IA chiral stationary phase. Semipreparative amounts of enantiopure forms were collected using acetonitrile-ethanol-trifluoroacetic acid mixtures as mobile phase. The absolute configuration of both compounds was unequivocally established by single-crystal X-ray diffraction method and correlated to the chiroptical properties of isolated enantiomers.
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