Perfluorophenyl Derivatives as Unsymmetrical Linkers for Solid Phase Conjugation

Area of Science:

• Medicinal Chemistry
• Organic Chemistry
• Bioconjugation Chemistry

Background:

• Linkers are crucial in conjugation chemistry for drug discovery.
• Fluorinated compounds offer unique properties in chemical synthesis.
• Peptide backbone modification is key for developing new therapeutics.

Purpose of the Study:

• To introduce two novel series of fluorinated linkers for peptide conjugation.
• To investigate the chemoselectivity and activity of these linkers.
• To explore the potential for conjugating asymmetrical groups using these linkers.

Main Methods:

• Solid-phase peptide synthesis was employed to incorporate fluorinated linkers.
• Chemoselectivity and activity of linkers with sulfur, nitrogen, and oxygen terminals were assessed.
• A model peptide system was used to evaluate linker performance.

Main Results:

• Two distinct series of fluorinated linkers were successfully synthesized and introduced into a model peptide.
• The fluorinated linkers demonstrated the ability to conjugate two asymmetrical groups, a novel capability.
• Investigation confirmed the chemoselectivity and activity of linkers with S, N, and O terminals for branching peptide backbones.

Conclusions:

• The developed fluorinated linkers possess unique properties for designing and synthesizing diverse bioconjugated chemicals.
• These linkers open new avenues for creating complex peptide structures for various bioapplications.
• This advancement has significant implications for drug discovery and development.