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Related Experiment Video

Updated: Jan 30, 2026

Synthesis and Bioconjugation of Thiol-Reactive Reagents for the Creation of Site-Selectively Modified Immunoconjugates
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Selective Synthesis of (+)-Dysoline.

Aaron Coffin1, Joseph M Ready1

  • 1Department of Biochemistry, Division of Chemistry , UT Southwestern Medical Center , 5323 Harry Hines Blvd. , Dallas , Texas 75390-0938 , United States.

Organic Letters
|January 18, 2019
PubMed
Summary

A new synthesis of the natural compound dysoline was developed. This research enables further studies on dysoline

Area of Science:

  • Natural Product Synthesis
  • Medicinal Chemistry
  • Organic Chemistry

Background:

  • Dysoline is a chromone alkaloid from Dysoxylum binectariferum.
  • It exhibits selective cytotoxicity against fibrosarcoma cells.
  • Limited natural supply hinders further investigation.

Purpose of the Study:

  • To develop a concise synthesis of (+)-dysoline.
  • To enable further biological evaluation of dysoline.

Main Methods:

  • Enantioselective nucleophile-catalyzed aldol lactonization for piperidine ring formation.
  • Danheiser benzannulation for constructing the C6-chromone core.
  • Stereochemical control of relative and absolute configuration.

Main Results:

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  • A concise synthetic route to (+)-dysoline was established.
  • The synthesis achieved complete regioselectivity in chromone core construction.
  • Stereochemistry was controlled during piperidine ring formation.

Conclusions:

  • The developed synthesis provides a viable route to (+)-dysoline.
  • This synthetic accessibility facilitates further biological evaluation.
  • The study overcomes limitations posed by natural material scarcity.