Enantiomeric resolution of some imidazole antifungal agents on chiralpak WH chiral stationary phase using HPLC |
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Authors: | H Y Aboul-Enein I Ali |
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Institution: | (1) Pharmaceutical Analysis Laboratory, Biological and Medical Research Department (MBC-03), King Faisal Specialist Hospital and Research Center, P.O. Box 3354, 11211 Riyadh, Saudi Arabia |
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Abstract: | Summary The enantiomeric resolution of (±)-econazole, (±)-miconazole and (±)-sulconazole was achieved on a Chiralpak WH column. The
mobile phase used was hexane-2-propanol-diethylamine (400:99:1,v/v/v). The flow rates of the mobile phase used were 0.50 and 1.00 mL min−1. The values of α of the resolved enantiomers of econazole, miconazole and sulconazole were in the range of 1.68 to 1.23 while
the values of Rs varied from 2.42 to 1.10. The resolution of these antifungal agents on Chiralpak WH column is governed by
ligand exchange mechanism. Hydrophobic interactions also play an important role for the enantiomeric resoltuion of antifungal
agents on the reported CSP. |
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Keywords: | Column liquid chromatography Chiral resolution L-proline-copper ligand complex Imidazole Antifungal agents |
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