A naphthothiopyranone derivative of general formula (I) or an acid addition salt thereof, wherein R¹ represents hydrogen or C₁ to C₄ alkyl. It has a more excellent serotonin 3 receptor antagonism than that of conventional compounds and various actions based thereon, e.g., an antiemetic action, an action of regulating gastrointestinal movement, and an antianxiety action.
通式(I)的
萘硫吡喃酮衍
生物或其酸加盐,其中 R¹ 代表
氢或 C₁ 至 C₄ 烷基。与传统化合物相比,它具有更出色的 5-羟
色胺 3 受体拮抗作用以及基于此的各种作用,例如止吐作用、调节胃肠运动作用和抗焦虑作用。