Isosteric Ring Exchange as a Useful Scaffold Hopping Tool in Agrochemistry

Area of Science:

• Medicinal Chemistry
• Agrochemical Science

Background:

• Scaffold hopping, involving the replacement of a ring system within a molecule, is a crucial strategy in drug discovery.
• Isosteric ring exchange maintains molecular size, shape, and physicochemical properties, often preserving biological activity.
• This approach is vital for generating analogues of biologically active compounds.

Purpose of the Study:

• To review the application of isosteric ring exchange in agrochemical discovery.
• To identify successful ring interchanges for creating highly active agrochemicals.
• To demonstrate the utility of scaffold hopping in agrochemical research.

Main Methods:

• Literature review of scaffold hopping transformations in agrochemical development.
• Analysis of successful isosteric ring exchange strategies.
• Case studies of agrochemicals discovered through ring modification.

Main Results:

• Isosteric ring exchange has led to the identification of numerous highly active agrochemicals.
• Specific ring interchanges, such as replacing benzene rings with pyridines or other heterocycles, have proven particularly successful.
• The strategy enables fine-tuning of properties for enhanced efficacy and selectivity.

Conclusions:

• Isosteric ring exchange is a powerful and successful strategy in the discovery of novel agrochemicals.
• Understanding successful ring interchanges can guide future agrochemical design.
• Scaffold hopping via ring modification offers a viable route to potent and effective crop protection agents.