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Combinatorial libraries by portioning and mixing.

A Furka¹, W D Bennett

¹Advanced ChemTech Inc., Louisville, KY, USA. afurka@peptide.com

Combinatorial Chemistry & High Throughput Screening

|July 27, 1999

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Combinatorial chemistry, particularly portioning-mixing (split-mix) synthesis, enables rapid generation of diverse molecular libraries. This method is crucial for discovering new compounds efficiently.

Area of Science:

Synthetic Chemistry
Medicinal Chemistry
Drug Discovery

Background:

Combinatorial chemistry offers novel synthetic approaches for future chemical research.
Portioning-mixing (split-mix) synthesis is a key combinatorial technique with broad applicability.

Purpose of the Study:

To highlight the significance of portioning-mixing synthesis in combinatorial chemistry.
To discuss practical aspects of library design and encoding for large-scale compound generation.

Main Methods:

Utilizes portioning-mixing (split-mix) synthesis for creating diverse chemical libraries.
Employs various encoding strategies like peptide/nucleotide sequences, binary tags, and physical tagging (chips, barcodes, colored resins).
Discusses deconvolution strategies including iteration, positional scanning, omission libraries, Selectide, and Pharmacopeia methods.

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Main Results:

Achieves production of all possible monomer combinations with high productivity.
Generates individual compounds in nearly equimolar quantities.
Demonstrates applicability across all organic compound classes.

Conclusions:

Portioning-mixing synthesis is a powerful and versatile method for generating large chemical libraries.
Effective library design, encoding, and deconvolution are essential for maximizing the utility of combinatorial chemistry.
This approach accelerates the discovery of novel compounds for various applications.