A new class of high affinity thyromimetics containing a phenyl-naphthylene core

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Endocrinology

Background:

• Thyroid hormone receptors (TRs) are crucial nuclear receptors regulating metabolism and development.
• Existing thyromimetics often share a diaryl ether core structure similar to thyroxine.
• Development of novel TR ligands with distinct scaffolds is essential for therapeutic applications.

Purpose of the Study:

• To report novel high-affinity thyromimetics based on a phenyl-naphthylene core.
• To investigate the synthesis and structure-activity relationship (SAR) of this new class of TR ligands.
• To evaluate binding affinity and selectivity for the thyroid hormone receptor beta (TRbeta).

Main Methods:

• Suzuki coupling protocol for synthesizing the functionalized phenyl-naphthylene core.
• Characterization of synthesized compounds.
• Binding affinity and selectivity assays for TRbeta receptor.

Main Results:

• Successful synthesis of novel thyromimetics featuring a phenyl-naphthylene core.
• Achieved sub-nanomolar binding affinities for the TRbeta receptor.
• Observed low to modest selectivity for TRbeta.
• Demonstrated a divergent SAR compared to diaryl ether-based thyromimetics.

Conclusions:

• The phenyl-naphthylene core represents a viable scaffold for developing high-affinity TRbeta ligands.
• These novel thyromimetics offer a distinct chemical space for TR-targeted drug discovery.
• Further exploration of this scaffold may yield improved TR modulators with tailored selectivity profiles.