Krishnamurthy, Vijay M.; Bohall, Brooks R.; Kim, Chu-Young; Moustakas, Demetri T.; Christianson, David W.; Whitesides, George M. published the artcile< Thermodynamic parameters for the association of fluorinated benzenesulfonamides with bovine carbonic anhydrase II>, COA of Formula: C6H6FNO2S, the main research area is thermodn crystal structure fluorinated benzenesulfonamide carbonic anhydrase.
This paper describes a calorimetric study of the association of a series of seven fluorinated benzenesulfonamide ligands (C6HnF5-nSO2NH2) with bovine carbonic anhydrase II (BCA). Quant. structure-activity relationships between the free energy, enthalpy, and entropy of binding and pKa and logP of the ligands allowed the evaluation of the thermodn. parameters in terms of the two independent effects of fluorination on the ligand: its electrostatic potential and its hydrophobicity. The parameters were partitioned to the three different structural interactions between the ligand and BCA: the ZnII cofactor-sulfon-amide bond (≈65% of the free energy of binding), the hydrogen bonds between the ligand and BCA (≈10%), and the contacts between the Ph ring of the ligand and BCA (≈25%). Calorimetry revealed that all of the ligands studied bind in a 1:1 stoichiometry with BCA; this result was confirmed by 19F NMR spectroscopy and X-ray crystallog. (for complexes with human carbonic anhydrase II).
Chemistry – An Asian Journal published new progress about Conformation. 1524-40-9 belongs to class amides-buliding-blocks, and the molecular formula is C6H6FNO2S, COA of Formula: C6H6FNO2S.
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics