Synthesis, characterization, and BSA binding studies of newfangled 2-phenylacetohydrazide derivatives

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Biophysical Chemistry

Background:

• 2-phenylacetohydrazide derivatives are a class of compounds with potential pharmacological activities.
• Understanding the interaction of small molecules with serum albumin is crucial for drug development and pharmacokinetic studies.

Purpose of the Study:

• To synthesize and characterize novel 2-phenylacetohydrazide derivatives.
• To investigate the binding interactions of these derivatives with Bovine Serum Albumin (BSA).

Main Methods:

• Synthesis of five 2-phenylacetohydrazide derivatives via condensation reactions.
• Characterization using FTIR, 1D, and 2D NMR spectroscopy.
• Structural analysis by single crystal X-ray diffraction.
• Binding studies with BSA using fluorescence spectroscopy.
• Thermodynamic analysis of BSA-ligand interactions.

Main Results:

• Five derivatives, including BPAH and PPAH, were successfully synthesized and structurally confirmed.
• BPAH and PPAH demonstrated the highest binding affinity to BSA, suggesting significant molecular interactions.
• Thermodynamic analysis revealed exothermic binding for BPAH, EPAH, FMAH, and HBPAH (driven by van der Waals forces and hydrogen bonding), and endothermic binding for PPAH (driven by hydrophobic interactions).

Conclusions:

• The synthesized 2-phenylacetohydrazide derivatives exhibit varying binding affinities to BSA.
• BPAH and PPAH show promising binding capabilities with BSA, warranting further investigation for potential therapeutic applications.
• The binding mechanisms involve a combination of hydrogen bonding, van der Waals forces, and hydrophobic interactions, depending on the specific derivative.