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Silicon-Containing Complex II Acaricides─Design, Synthesis, and Pharmacological Optimization.

Cong Zhou1, Xin Wang1, Xiaocao Quan1

  • 1Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, People's Republic of China.

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Replacing carbon with silicon (Si) in drug and pesticide design offers enhanced efficacy, selectivity, and safety. This bioisosteric strategy yields novel compounds like sila-cyflumetofen with potent acaricidal activity.

Keywords:
carbon−silicon bioisosteric replacementscomplex II acaricidescomputational modelingcyflumetofenmode of actionsilicon-containing drugs and pesticidesstructure−activity relationship

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Area of Science:

  • Medicinal Chemistry
  • Agrochemical Research
  • Bioorganic Chemistry

Background:

  • Bioisosteric replacement is a key strategy in life sciences.
  • Carbon-silicon (C-Si) substitution leverages similar intrinsic properties of carbon and silicon.
  • This approach has broad applications in pharmaceuticals and crop protection.

Purpose of the Study:

  • To review the general aspects of C-Si bioisosteric substitution.
  • To explore its applications in pharmaceutical and crop protection research.
  • To highlight the discovery of novel carbon-silicon compounds as acaricides.

Main Methods:

  • Literature review of C-Si bioisosteric substitution.
  • Analysis of effects on efficacy, selectivity, and physicochemical properties.
  • Case study on the development of complex II acaricides.

Main Results:

  • C-Si substitution positively impacts efficacy, selectivity, bioavailability, and safety profiles.
  • It can lead to novel compounds with improved properties and new intellectual property.
  • Discovery of sila-cyflumetofen and related analogues with potent acaricidal activity.

Conclusions:

  • Carbon-silicon bioisosteric substitution is a valuable strategy in drug and agrochemical discovery.
  • This approach offers significant advantages in optimizing compound properties and safety.
  • The development of sila-cyflumetofen exemplifies the successful application of C-Si substitution in acaricide research.