Cyano piperazinyl quinoxaline deriv. prepn.

摘要

2-Cyano 3-piperazinyl qunoxalines of formula (I), which are selective antagonists of 5HT3 receptors and useful for treatment of nausea, vomiting, gastric complaints, anxiety states and pyschotic reactions, are made by replacing halogen in 2-cyano 3-halo quinoxalines with a substituted piperazinyl gp.