Diversity-Oriented Library Synthesis from Steviol and Isosteviol-Derived Scaffolds.

Area of Science:

• Medicinal Chemistry
• Natural Products Chemistry
• Drug Discovery

Background:

• Stevioside, a natural product, possesses a unique diterpene core.
• This core structure is amenable to chemical modification for library synthesis.

Purpose of the Study:

• To develop a diverse small molecule library from the stevioside scaffold.
• To screen this library for potential therapeutic agents.

Main Methods:

• Diversity-oriented synthesis and functional group transformations were employed.
• Over 90 compounds were synthesized from steviol and related analogues.
• High-throughput screening was conducted via the NIH Molecular Libraries Screening Center Network.

Main Results:

• Micromolar hits were identified in multiple high-throughput assays.
• Cheminformatics analysis confirmed the diversity and complexity of the synthesized compounds.
• Several library members showed activity against various targets.

Conclusions:

• Scaffolds derived from natural products can yield effective screening hits.
• Stevioside analogues represent a promising starting point for small molecule library development.