Fluorinated tetrapodal anion transporters

Area of Science:

• Supramolecular Chemistry
• Medicinal Chemistry
• Chemical Biology

Background:

• Synthetic anion transporters are promising for treating diseases like cystic fibrosis and cancer.
• Transporter design must balance complex architectures with solubility and deliverability.
• Fluorination is a strategy to tune transporter properties like lipophilicity and transport rates.

Purpose of the Study:

• To investigate the impact of fluorination on tetrapodal (thio)urea anion transporters.
• To assess how fluorination affects lipophilicity, solubility, deliverability, and anion transport selectivity.
• To explore the potential of fluorinated transporters in therapeutic applications.

Main Methods:

• Synthesis of a series of fluorinated tetrapodal anion transporters.
• Anion-binding and transport assays to evaluate transporter performance.
• Utilized the 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) assay to monitor transport activity.

Main Results:

• Fluorination successfully tuned the lipophilicity, solubility, and deliverability of the tetrapodal scaffold.
• The primary anion transport mechanism identified was H+/X- cotransport.
• The most fluorinated tetrathiourea (compound 8) exhibited the highest transport activity in the HPTS assay.
• A notable inversion in Cl- vs NO3- transport selectivity was observed compared to related tripodal transporters.

Conclusions:

• Fluorination is an effective strategy for optimizing synthetic anion transporters.
• The developed fluorinated tetrapodal transporters demonstrate significant potential for therapeutic applications.
• Further research into these transporters could lead to novel treatments for anion-related diseases.