Provided are novel 2-fluorophenyl propionic acid derivatives which have excellent anti-inflammatory/analgesic effects while avoiding side effects such as gastrointestinal disorders, namely 2-fluorophenyl propionic acid derivatives represented by the formula (I) below or pharmaceutically acceptable salts thereof,
[wherein, R1 represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted phenyl group, X represents —CH2—, —NH—, —O—, or —S—, and Y specifically represents group (II)
(wherein, Z1 represents —CO—, —CH(OH)—, or —CH2—, and n represents an integer of 1 or 2.)]
提供了一种新型的2-
氟苯丙酸衍
生物,具有优异的抗炎/镇痛效果,同时避免了胃肠道疾病等副作用,即由下式(I)所表示的2-
氟苯丙酸衍
生物或其药学上可接受的盐,[其中,R1代表
氢原子、卤原子或取代或未取代的
苯基,X代表—
CH2—、—NH—、—O—或—S—,而Y具体代表群(II)(其中,Z1代表—CO—、—CH(OH)—或— —,n代表1或2的整数)。]