A template-assembled synthetic U-quadruplex

Area of Science:

• Supramolecular Chemistry
• Organic Chemistry
• Nucleoside Chemistry

Background:

• Cavitands are host molecules with a well-defined cavity.
• Nucleoside derivatives are essential in biological systems and medicinal chemistry.
• Self-assembly is a key process in supramolecular chemistry for creating complex structures.

Purpose of the Study:

• To synthesize a novel lipophilic cavitand functionalized with uridine residues.
• To investigate the self-assembly behavior of this cavitand in organic solution.
• To characterize the resulting supramolecular structure.

Main Methods:

• Chemical synthesis of the lipophilic cavitand bearing four uridine units.
• Nuclear Magnetic Resonance (NMR) spectroscopy for structural elucidation and characterization.
• Analysis of self-assembly in organic solvents under ambient conditions.

Main Results:

• Successful synthesis and characterization of the target lipophilic cavitand.
• Evidence from NMR spectroscopy indicating the formation of a U-quadruplex structure.
• Demonstration of self-assembly driven by uracil nucleobases in organic media.

Conclusions:

• The synthesized lipophilic cavitand can self-assemble into a U-quadruplex structure.
• This finding contributes to the understanding of nucleobase-driven self-assembly in supramolecular chemistry.
• The U-quadruplex formation in organic solution opens possibilities for novel molecular architectures.