Scientists at Jiangsu Hengrui Pharmaceuticals Co. Ltd., Shanghai Senhui Pharmaceutical Co. Ltd. and Shanghai Shengdi Pharmaceutical Co. Ltd. have described benzene ring derivatives acting as GABA-A receptor agonists reported to be useful for anesthesia and for the treatment of anxiety disorders, insomnia, depression, nausea and vomiting, migraine, convulsions, schizophrenia and epilepsy.