Disclosed herein are azetidin-2-one compounds which exhibit excellent cysteine proteinase inhibitory activity. The compounds are 4-substituted-3-1 or 2 amino acid residue}-azetidin-2-ones of forumula I ##STR1## wherein AAR is a 1 or 2 acid residue, and R.sub.1 and R.sub.2 are as defined herein. The compounds can be used in the treatment of various diseases such as muscular dystrophy, bone resorption disorders, myocardial infarction and cancer metastasis.
本发明公开了具有优异半胱
氨酸
蛋白酶抑制活性的氮杂环丁-2-酮化合物。这些化合物是4-取代-3-1或2个
氨基酸残基}-氮杂环丁-2-酮,其通式为I ##STR1##其中
AAR表示1或2个
氨基酸残基,R1和R2如本文所定义。这些化合物可用于治疗各种疾病,如肌肉萎缩症、骨质吸收障碍、心肌梗死和癌症转移。