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The impact of polystyrene resins in solid-phase organic synthesis
A A MacDonald1, S H Dewitt, S Ghosh
1Parke-Davis Pharmaceutical Research, Division of Warner-Lambert Company, Ann Arbor, MI 48105, USA.
Molecular Diversity
|May 1, 1996
Summary
DIVERSOMER technology aims to provide pure compounds for biological testing. Three methods were evaluated to remove polystyrene by-products, ensuring reliable screening results and preventing false negatives.
Area of Science:
- Chemical Synthesis
- Drug Discovery
- Analytical Chemistry
Background:
- The DIVERSOMER technology aims to supply pure, characterized compounds for biological screening.
- Polystyrene by-products have been identified in final products, potentially causing false negatives in biological assays.
- Reliable compound purity is essential for accurate biological testing and drug discovery.
Purpose of the Study:
- To investigate and implement methods for removing polystyrene by-products from synthesized compounds.
- To enhance the purity of compounds generated by the DIVERSOMER technology.
- To prevent interference of solid support by-products in biological testing.
Main Methods:
- Evaluation of three distinct methods for polystyrene by-product removal.
- Method 1: Prewashing the resin before synthesis.
- Method 2: Pretreatment of the resin under cleavage conditions.
- Method 3: Parallel purification of synthesized compounds.
Main Results:
- Analysis of final products using 1H-NMR and MS revealed the presence of polystyrene by-products.
- The study explored three distinct strategies to mitigate polystyrene contamination.
- The effectiveness of each method in removing by-products was assessed.
Conclusions:
- Effective removal of polystyrene by-products is crucial for DIVERSOMER technology.
- Implementing optimized purification strategies ensures compound integrity for biological testing.
- Preventing false negatives enhances the reliability of compound libraries in drug discovery efforts.