申请人:Aska Pharmaceutical Co., Ltd.
公开号:US08207203B2
公开(公告)日:2012-06-26
This invention offers isoxazole derivatives represented by the following formula (I)
in which R1 and R2 each stands for hydrogen, lower alkyl, amino and the like; R3 stands for substituted or unsubstituted aryl or hetero aryl; R4 stands for hydrogen or lower alkyl; R5 stands for substituted or unsubstituted phenyl, furyl and the like; and Y stands for —CH2—, —CO—, —O—, —NH— and the like,
or pharmaceutically acceptable salts thereof which exhibit excellent p38MAPkinase-inhibiting action with reduced side-effects, and are useful for treating such diseases as chronic rheumatoid arthritis, ulcerative colitis and the like.
该发明提供了以下式(I)所表示的异唑啉衍生物,其中R1和R2分别代表氢,低碳链基,氨基等;R3代表取代或未取代的芳基或杂环芳基;R4代表氢或低碳链基;R5代表取代或未取代的苯基,呋喃基等;Y代表—CH2—,—CO—,—O—,—NH—等,或其药学上可接受的盐。该衍生物具有出色的p38MAPkinase抑制作用,副作用较小,并可用于治疗慢性类风湿性关节炎,溃疡性结肠炎等疾病。