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Solid-phase synthesis of trisubsituted guanidines.
Thutam P Hopkins1, Jeffrey M Dener, Armen M Boldi
1ChemRx Division, Discovery Partners International, 385 Oyster Point Boulevard, Suite 1, South San Francisco, California 94080, USA.
Journal of Combinatorial Chemistry
|March 12, 2002
Summary
This study presents a novel solid-phase synthesis for trisubstituted guanidines. The method utilizes resin-bound carbodiimides, enabling efficient library generation for drug discovery.
Area of Science:
- Organic Chemistry
- Medicinal Chemistry
- Synthetic Chemistry
Background:
- Trisubstituted guanidines are valuable scaffolds in medicinal chemistry.
- Efficient and versatile synthetic routes are crucial for library generation.
- Solid-phase synthesis offers advantages in purification and automation.
Purpose of the Study:
- To develop a robust solid-phase synthesis for trisubstituted guanidines.
- To create a versatile platform for generating diverse guanidine libraries.
- To enable the discovery of new guanidine-containing drug candidates.
Main Methods:
- Solid-phase synthesis utilizing a 4-formyl-3,5-dimethoxyphenoxymethyl linker.
- Reductive amination and acylation for amine loading.
- Formation of solid-supported ureas and carbodiimides.
- Nucleophilic addition to carbodiimides followed by cleavage.
Main Results:
- Successful synthesis of trisubstituted guanidines on a solid support.
- Demonstrated versatility through different amine loading strategies.
- Generated libraries of trisubstituted guanidines with high purity.
Conclusions:
- The developed solid-phase method is efficient for synthesizing trisubstituted guanidines.
- This approach facilitates the rapid generation of diverse guanidine libraries.
- The methodology holds promise for accelerating drug discovery efforts.