Related Experiment Videos
Chirality and drug targeting: pros and cons
1Department of Pharmaceutical Sciences, University of Southern California, School of Pharmacy, Los Angeles 90033, USA.
Journal of Drug Targeting
|January 1, 1995
Summary
Stereoselective drug targeting, considering the eudismic ratio and quantitative structure-activity relationship, highlights the benefits of using specific stereoisomers (eutomers) over racemic mixtures for enhanced therapeutic efficacy and safety.
Area of Science:
- Chirality in medicinal chemistry and pharmacology.
- Stereoselective drug design and development.
Background:
- Chirality is a fundamental property of many drug molecules.
- Racemic mixtures, containing both enantiomers, are often used therapeutically.
- The biological activity of enantiomers can differ significantly.
Purpose of the Study:
- To present the theoretical basis of stereoselectivity in drug targeting.
- To discuss the advantages of using specific stereoisomers (eutomers) over distomers or racemic mixtures.
- To emphasize the necessity of testing the proper optical isomer for therapeutic agents.
Main Methods:
- Review of theoretical principles including eudismic ratio and quantitative structure-activity relationship (QSAR).
- Discussion of specific examples illustrating the benefits of eutomers.
- Consideration of advancements in chiral synthesis and chiral analysis.
Main Results:
- The eudismic ratio quantifies the difference in activity between enantiomers.
- Eutomers offer improved therapeutic profiles compared to distomers or racemic mixtures.
- Modern chiral technologies make the use of racemic mixtures less justifiable.
Conclusions:
- Stereoselective drug targeting is crucial for optimizing therapeutic outcomes.
- The development of novel chiral synthesis and analysis methods supports the use of single enantiomers.
- Future drug development, especially for peptide-based therapeutics, must prioritize the selection and testing of the correct optical isomer.