Structure-activity relationship study of HIF-2α inhibitors with tricyclic scaffold

Area of Science:

• Medicinal Chemistry
• Oncology
• Molecular Biology

Background:

• Hypoxia-inducible factor-2 alpha (HIF-2α) is a critical oncogenic driver in renal cell carcinoma (RCC).
• Overaccumulation of HIF-2α protein is a hallmark of RCC, indicating its potential as a therapeutic target.
• Targeting HIF-2α presents a promising strategy for the treatment of renal cell carcinoma.

Purpose of the Study:

• To discover and characterize novel HIF-2α inhibitors.
• To explore the therapeutic potential of inhibiting HIF-2α in renal cell carcinoma.
• To optimize a novel tricyclic scaffold for enhanced HIF-2α inhibition.

Main Methods:

• Systematic structure-activity relationship (SAR) studies were conducted.
• A novel series of compounds with a tricyclic scaffold were synthesized and characterized.
• Optimization efforts focused on modifying the tricyclic scaffold, including the introduction of a fluorine atom.

Main Results:

• A novel series of HIF-2α inhibitors based on a tricyclic scaffold was successfully discovered.
• Structure-activity relationship analysis guided the optimization process.
• Specific modifications, such as incorporating a fluorine atom in the cis position, were found to be beneficial.

Conclusions:

• The identified tricyclic compounds represent a promising new class of HIF-2α inhibitors.
• These inhibitors hold potential for the development of novel therapeutics for renal cell carcinoma.
• Further investigation into the optimized scaffold is warranted for clinical development.