Synthesis, Profiling, and in Vivo Evaluation of Cyclopeptides Containing -Methyl Amino Acids as Antiplasmodial Agents.

Malaria is a major tropical disease where important needs are to mitigate symptoms and to prevent the establishment of infection. Cyclopeptides containing -methyl amino acids with activity against erythrocytic forms as well as liver stage are presented. The synthesis, parasitological characterization, physicochemical properties, evaluation, and mice pharmacokinetics are described.

Chemoselective and Sequential Palladium-Catalyzed Couplings for the Generation of Stilbene Libraries via Immobilized Substrates.

A versatile palladium-catalyzed tandem synthetic sequence to afford E-stilbenes libraries has been developed. Excellent regio- and stereocontrol have been achieved by means of the sequence of Hiyama and Heck cross-couplings. Undesirable homocoupling byproducts were avoided employing immobilized substrates.