Rational Design, Synthesis, and Preliminary Structure–Activity Relationships of α-Substituted-2-Phenylcyclopropane Carboxylic Acids as Inhibitors of <i>Salmonella typhimurium</i> <i>O</i>-Acetylserine Sulfhydrylase
affects the physiology of unicellular organisms. As a continuation of our efforts toward the synthesis of OASS inhibitors, in this work we have used a combination of computational and spectroscopic approaches to rationally design, synthesize, and test a series of substituted 2-phenylcyclopropane carboxylic acids that bind to the two S. typhymurium OASS isoforms at nanomolar concentrations.
likely due to poor permeability. Therefore, we rationally modified the structure of the hit compound with the aim of promoting their passage through the outer cell membrane porins. The new series was evaluated on the recombinant enzyme fromSalmonella enterica serovar Typhimurium, with several compounds able to keep nanomolar binding affinity despite the extent of chemical manipulation.