A novel ketone derivative (I) which possesses a potent inhibitory activity against thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L, calpain or the like with excellent properties regarding oral absorbance, tissue transference and cell membrane permeability, and are clinically useful in the treatment of various diseases such as muscular dystrophy, amyotrophy. Also provided are a process for producing the compound (I) and a pharmaceutical composition containing the same.
                            一种新型酮衍
生物(I)对
硫醇
蛋白酶(如
木瓜蛋白酶、
酪蛋白酶 B、
酪蛋白酶 H、
酪蛋白酶 L、
钙蛋白酶或类似物)具有强效抑制活性,在口服吸收性、组织转移性和细胞膜渗透性方面具有优异特性,在治疗各种疾病(如肌肉萎缩症、肌萎缩症)方面具有临床用途。此外,还提供了化合物(I)的生产工艺和含有该化合物的药物组合物。