Epoxysuccinic acid derivatives having general formula (I) (wherein R1 represents hydrogen, alkyl, aryl or aralkyl; R2 and R3 independently represent each aryl, aralkyl or alkyl; and X represents -O-or NR4- wherein R4 represents hydrogen, alkyl or aralkyl) which is useful in the prevention or treatment of bone diseases such as osteoporosis, malignant hypercalcemia, and bone Behcet's disease, in the treatment of osteoarthritis and rheumatoid arthritis in association with the abnormal hyperergasia of cathepsin L activity, and as a remedy for diseases in which cathepsins L and B participate such as muscular dystrophy and amyotrophy.
具有通式(I)的
环糊精酸衍
生物(其中 R1 代表氢、烷基、芳基或芳烷基;R2 和 R3 分别独立地代表芳基、芳烷基或烷基;X代表-O-或NR4-,其中R4代表氢、烷基或芳烷基),可用于预防或治疗骨质疏松症、恶性高
钙血症和骨白塞氏病等骨科疾病,治疗骨关节炎和类风湿性关节炎等与
酪蛋白酶L活性异常亢进有关的疾病,以及治疗肌肉萎缩症和肌萎缩症等
酪蛋白酶L和B参与的疾病。