Synthesis of polyamine derivatives for the preparation of affinity chromatography columns for the search of new Trypanosoma cruzi targets

Article abstract of DOI:10.1016/S0960-894X(99)00226-7

The most potent trypanocidal compound of a series of symmetrically substituted 1,4-bis(3-aminopropylpiperazines) which displayed an IC₅₀ value of 5 μM on Trypanosoma cruzi trypomastigotes, was inactive on trypanothione reductase. Two derivatives 6 and 12 of this compound, one symmetrical and one dissymetrical, were synthesized via a reductive amination reaction, to prepare affinity chromatography columns, which allowed us to isolate three parasitic proteins. Among these, the major ligand 6- and 12-binding protein having an apparent molecular weight of 52 kDa has been identified as the thiol-disulfide oxido-reductase Tc52, previously characterized in Trypanosoma cruzi.