N-oxide pyrazine derivatives represented by formula (I) or a salt thereof, or a solvate thereof or a hydrate thereof:
wherein:
R1. R2, R3, R4, and R5 are as defined in the disclosure. Also disclosed are methods of preparing the compounds of formula (I) and their use in therapeutics.
式(I)中表示的N-氧化
吡嗪衍
生物,或其盐,溶剂或
水合物:
其中:R1、R2、R3、R4和R5如本公开中所定义。本公开还揭示了制备式(I)化合物的方法及其在治疗中的用途。