Deoxyribonuclease I Inhibitory Properties, Molecular Docking and Molecular Dynamics Simulations of 1-(Pyrrolidin-2-yl)propan-2-one Derivatives.

Deoxyribonuclease I (DNase I) inhibitory properties of two 1-(pyrrolidin-2-yl)propan-2-one derivatives were examined in vitro. Determined IC values of 1-[1-(4-methoxyphenyl)pyrrolidin-2-yl]propan-2-one (1) (192.13±16.95 μM) and 1-[1-(3,4,5-trimethoxyphenyl)pyrrolidin-2-yl]propan-2-one (2) (132.62±9.92 μM) exceed IC value of crystal violet, used as a positive control, 1.89- and 2.73-times, respectively. Compounds are predicted to be nontoxic and to have favorable pharmacokinetic profiles, with high gastrointestinal absorption and blood-brain barrier permeability. Molecular docking and molecular dynamics simulations suggest that interactions with Glu 39, Glu 78, Arg 111, Pro 137, Asp 251 and His 252 are an important factor for inhibitors affinity toward the DNase I. Determined inhibitory properties along with predicted ADMET profiles and observed interactions would be beneficial for the discovery of new active 1-(pyrrolidin-2-yl)propan-2-one-based inhibitors of DNase I.