Synthesis, characterization, and antiplasmodial activity of polymer-incorporated aminoquinolines

Abstract

In this research, aminoquinoline compounds were synthesized, characterized and incorporated into water soluble polymers to form conjugates. The conjugates were characterized by X ray Diffraction (XRD), Thermal Gravimetric Analysis (TGA), Scanning Electron Microscope (SEM), Fourier Transform Spectroscopy (FTIR) and Nuclear Magnetic Resonance spectroscopy (NMR) to confirm the successful incorporation of the aminoquinoline compound on to the polymer. The synthesized conjugates were screened for in vitro antiplasmodial activity in triplet test against chloroquine sensitive strain of Plasmodium falciparum and chloroquine drug was used as a reference drug in all the experiments. A full dose response was performed to determine the concentration inhibiting 50% of parasite growth (IC(sub50)-value). Polymeric conjugates containing 3-diethylamino-1-propylamine solubilizing units were found to be most active against the chloroquine sensitive strain of Plasmodium falciparum.