Design, synthesis, and characterization of novel aminoalcohol quinolines with strong in vitro antimalarial activity

Malaria is the fifth most lethal parasitic infections in the world. Herein, five new series of aminoalcohol quinolines including fifty-two compounds were designed, synthesized and evaluated in vitro against Pf3D7 and PfW2 strains. Among them, fourteen displayed IC₅₀ values below or near of 50.0 nM whatever the strain with selectivity index often superior to 100.17b was found as a promising antimalarial candidate with IC₅₀ values of 14.9 nM and 11.0 nM against respectively Pf3D7 and PfW2 and a selectivity index higher than 770 whatever the cell line is. Further experiments were achieved to confirm the safety and to establish the preliminary ADMET profile of compound 17b before the in vivo study performed on a mouse model of P. berghei ANKA infection. The overall data of this study allowed to establish new structure-activity relationships and the development of novel agents with improved pharmacokinetic properties.

Thermal spin-crossover with a large hysteresis spanning room temperature in a mononuclear complex

The substitution of sulphur by selenium leads to spin-crossover single-crystals exhibiting a large hysteresis centred at room temperature.

Influence of isomerism on recrystallization and cocrystallization induced by CO2 as an antisolvent

The position of the amine group in aminosalicylic acid has a significant impact not only on polymorph or cocrystal formation but also on the crystal shape during crystallization using CO₂ as an antisolvent.