The invention discloses isoxazole derivatives represented by a formula,
in which
R
1
stands for hydrogen, lower alkyl, amino, halogen, lower alkoxy and the like,
R
2
stands for substituted or unsubstituted aryl and the like,
R
3
stands for hydrogen or lower alkyl,
R
4
stands for substituted or unsubstituted phenyl and the like, and
Y stands for —CH
2
—, —CO—, —CH(CH
3
)—, —O—, —NH— and the like, or pharmaceutically acceptable salts thereof, which have excellent p38MAPkinase inhibitory action.
本发明揭示了由式子表示的异唑啉衍
生物,其中R1代表氢、低碳基、
氨基、卤素、低烷氧基等;R2代表取代或未取代的芳基等;R3代表氢或低碳基;R4代表取代或未取代的苯基等;Y代表—
CH2—、—CO—、—CH(
CH3)—、—O—、—NH—等,或其药学上可接受的盐,具有出色的p38
MAPkinase抑制作用。