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¹H NMR: Complex Splitting

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A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
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¹ChemRx Division of Discovery Partners International, 385 Oyster Point Boulevard, South San Francisco, CA 94080, USA. byan@chemrx.com

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|May 23, 2002

Summary

This summary is machine-generated.

Split synthesis, a method for creating chemical libraries, is being revived due to advances in biological screening and single-bead analysis. This enables high-throughput screening of one-bead-one-compound libraries despite ongoing challenges.

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Area of Science:

Chemical synthesis
Combinatorial chemistry
Biotechnology

Background:

Split synthesis has faced limitations hindering its widespread use.
Recent technological advancements are driving renewed interest in split synthesis.
High-throughput screening and single-bead analysis methods have emerged as key enablers.

Purpose of the Study:

To highlight the potential revival of split combinatorial synthesis.
To discuss the impact of new screening and analysis technologies on split synthesis.
To assess the current feasibility of high-throughput screening using split synthesis.

Main Methods:

Review of recent developments in biological screening.
Analysis of miniaturized single-bead analysis techniques.
Evaluation of the applicability of these methods to split synthesis.

Main Results:

Advances in condensed and miniaturized screening methods support split synthesis.
Single-bead analysis offers new possibilities for compound library screening.
High-throughput analysis of one-bead-one-compound libraries is becoming more achievable.

Conclusions:

Split synthesis is poised for a revival, driven by technological progress.
Despite challenges, current methods facilitate high-throughput screening of split synthesis libraries.
The integration of new technologies enhances the utility of split combinatorial synthesis.