Enantiomeric derivatization for biomedical chromatography

Area of Science:

• Analytical Chemistry
• Organic Chemistry
• Pharmaceutical Analysis

Background:

• Enantiomers, mirror-image isomers, often exhibit different biological activities.
• Chromatographic separation of enantiomers is crucial in pharmaceutical and biological analysis.
• Traditional methods face challenges in resolving complex chiral molecules.

Purpose of the Study:

• To review recent advancements (last 10 years) in chiral derivatization techniques.
• To discuss strategies for enhancing enantiomeric resolution in chromatography.
• To explore methods for improving detectability and chromatographic properties of chiral compounds.

Main Methods:

• Covalent transformation of enantiomers into diastereomers using homochiral derivatizing agents.
• Separation of diastereomers on achiral stationary phases.
• Achiral derivatization to improve interactions with chiral stationary phases.
• Dynamic diastereomer formation using chiral mobile phase additives.

Main Results:

• Diastereomeric derivatives (esters, amides, etc.) are separable on achiral columns.
• Derivatization improves chromatographic properties and detectability (UV, fluorescence).
• Achiral derivatization enhances chiral recognition on chiral stationary phases.
• Chiral mobile phase additives facilitate dynamic diastereomer formation.

Conclusions:

• Chiral derivatization is a versatile strategy for enantioseparation.
• Techniques discussed offer improved resolution, detection, and analysis of chiral compounds.
• Advancements in derivatization expand the scope of chiral chromatography in various scientific fields.