Solid-phase synthesis of optically active substituted 2 aminofuranones using an activated carbonate linker

Area of Science:

• Organic Chemistry
• Synthetic Chemistry
• Medicinal Chemistry

Background:

• 2-Aminofuranones are important heterocyclic compounds with diverse biological activities.
• Efficient synthetic routes are crucial for accessing diverse libraries of these compounds for drug discovery.
• Solid-phase synthesis offers advantages in purification and automation for library generation.

Purpose of the Study:

• To develop an efficient and versatile solid-phase synthesis for 3,5-disubstituted-2-aminofuranones.
• To explore the scope and limitations of the developed synthetic methodology.
• To provide a facile route to diverse aminofuranone derivatives for potential pharmaceutical applications.

Main Methods:

• Solid-phase synthesis utilizing a nitrophenyl carbonate derivative of Wang resin.
• Loading alpha-hydroxy acids onto the resin to act as acylating agents.
• C-acylation of active methylene compounds followed by cyclative cleavage.

Main Results:

• Successful development of a three-step solid-phase synthesis for 3,5-disubstituted-2-aminofuranones.
• Demonstration of the method's efficiency and versatility in generating diverse products.
• Isolation of the desired aminofuranone products through a cyclative cleavage reaction.

Conclusions:

• The developed solid-phase strategy provides an efficient route to diverse 3,5-disubstituted-2-aminofuranones.
• This method is amenable to library synthesis and can be valuable for medicinal chemistry efforts.
• The facile cyclative cleavage offers a key step in accessing the target heterocyclic scaffolds.