Synthesis and properties of Praziquantel, a novel broad spectrum anthelmintic with excellent activity against Schistosomes and Cestodes.

Synthesis and properties of 2-cyclohexylcarbonyl-1,3,4,6,7,11b-hexahydro-2H-pyrazino [2,1-a] isoquinolin-4-one, a novel anthelmintic with excellent activity against all species of Schistosomes pathogenic to man and a wide range of cestodes, will be reported.