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Fluorinated mechanism-based inhibitors: common themes and recent developments.

Christina Tysoe, Stephen G Withers1

  • 1Department of Chemistry, University of British Columbia, 2036, Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada. withers@chem.ubc.ca.

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Fluorine substitution enhances mechanism-based inhibitors, leading to effective pharmaceuticals. These compounds are activated by target enzymes for covalent inactivation, with notable examples in cancer and African sleeping sickness treatments.

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Area of Science:

  • Medicinal Chemistry
  • Enzyme Inhibitor Development
  • Fluorine Chemistry

Background:

  • Mechanism-based inhibitors are prodrugs activated by target enzymes for covalent inactivation.
  • Fluorine substitution offers advantageous properties for inhibitor design and pharmaceutical applications.
  • Several fluorinated mechanism-based inhibitors have achieved clinical success over the past 50 years.

Purpose of the Study:

  • To highlight the benefits of fluorine substitution in mechanism-based inhibitors.
  • To discuss the development and properties of medically relevant fluorinated inhibitors.
  • To underscore the increasing importance of fluorinated compounds in medicinal chemistry.

Main Methods:

  • Review of existing literature on fluorinated mechanism-based inhibitors.
  • Analysis of chemical properties conferred by fluorine substitution.
  • Case studies of clinically used fluorinated inhibitors.

Main Results:

  • Fluorine substitution improves inhibitor characteristics, enhancing their pharmaceutical potential.
  • Established examples like 5-fluorouracil metabolite and α-difluoromethylornithine demonstrate clinical efficacy.
  • A growing number of novel fluorinated inhibitors are under development.

Conclusions:

  • Fluorinated mechanism-based inhibitors represent a significant and expanding area in drug discovery.
  • The strategic use of fluorine is crucial for developing effective enzyme-targeted therapies.
  • Continued research promises further advancements in treating various diseases with these agents.