This invention relates to a novel class of compounds, represented by the formula (I) below, wherein the meanings of R1, R2, R3 and R4 are indicated therein, which are cysteine protease inhibitors, including but not limited to, inhibitors of cathepsins K, L, S and B. These compounds are useful for treating diseases in which inhibition of bone resorption is indicated, such as osteoporosis, osteoarthritis and rheumatoid arthritis.
这项发明涉及一类新型化合物,由下式(I)表示,其中R1、R2、R3和R4的含义已在其中指示,这些化合物是半胱
氨酸
蛋白酶抑制剂,包括但不限于对卡
特普辛K、L、S和B的
抑制剂。这些化合物对于治疗需要抑制骨吸收的疾病非常有用,如骨质疏松症、骨关节炎和类风湿性关节炎。