From analytical methods to large scale chiral supercritical fluid chromatography using chlorinated chiral stationary phases

Journal of Chromatography. a
Dauh-Rurng WuArvind Mathur

Abstract

While traditional non-chlorinated Cellulose- and Amylose-derivatized phases have been used successfully in supercritical fluid chromatography (SFC) to resolve a broad variety of chiral compounds, some chiral pharmaceutical compounds are not well resolved on these traditional chiral stationary phases (CSP) due to the lack of chiral selectivity. Since there are no universal CSP to resolve all chiral compounds, chlorinated CSP can be complementary to the non-chlorinated CSP. Chlorinated CSP such as 4-Chloro-3-methylphenyl-carbamatecellulose (Lux-Cellulose-4), 3-Chloro-4-methylphenyl-carbamatecellulose (Lux-Cellulose-2), 5-Chloro-2-methylphenyl-carbamateamylose (Lux-Amylose-2) and immobilized 3,5-dichlorophenyl-carbamatecellulose (Chiralpak IC) have provided a range of chiral recognition mechanisms which have allowed the authors to successfully achieve chiral SFC resolution on several structurally diverse compounds, which are not well resolved in the non-chlorinated CSP. In addition, chlorinated Lux-Cellulose-4, Chiralpak IC and Lux-Amylose-2 have enabled us to utilize non-alcohol solvents as sample diluents and as co-solvents to significantly improve compound solubility and selectivity. This article will discuss the challenges ass...Continue Reading

References

Jan 25, 2003·Journal of Biochemical and Biophysical Methods·J L BernalM I Montequi
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Jun 3, 2009·Journal of Pharmaceutical and Biomedical Analysis·Partha S Mukherjee
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