参与式管理失眠症的药物已经历了类、苯二氮卓类(BZ)和非BZ短效药物3个阶段。属于非苯二氮卓类药物。艾司是的右旋异构体,是环吡咯酮类镇静催眠药,通过作用于苯二氮卓类【Abstract】 Insomnia drug therapy has a barbiturate, benzodiazepine class (BZ) and the three-stage non-BZ short-acting drugs. Zopiclone belongs to the nonbenzodiazepine class. Eszopiclone the (S)-enantiomer of the chiral hypnotic drug zopiclone, belongs to the cyclopyrrolone class of hypnotic drugs and acts as agonist at the type A γ-aminobutyric acid (GABA) receptor(ω1subtype) to improve the sleep quality. It has different characteristics in pharmacokinetics、pharmacodynamics and clinical treatment with benzodiazepine.This paper discusses the structure, physical and chemical properties、the discovery process, the structure-activity relationship, and pharmacological and pharmacokinetics characteristics of Eszopiclone.