The invention relates to a compound of formula (I)
wherein A1 to A4 and R1 to R6 are defined as in the description and in the claims. The compound of formula (I) can be used, for example, as inhibitors of the cysteine protease cathepsin.
本发明涉及一种式为(I)的化合物,其中A1至A4和R1至R6在说明书和权利要求中定义。式(I)化合物可用作半胱
氨酸
蛋白酶cathepsin的
抑制剂,例如。