申请人:Taiho Pharmaceutical Co., Ltd.
公开号:US05883121A1
公开(公告)日:1999-03-16
The invention relates an epoxysuccinamide derivative represented by the general formula (1) ##STR1## wherein R.sup.1 and R.sup.2 are the same or different from each other and independently represent H or an aromatic hydrocarbon group or aralkyl group which may be substituted, or R.sup.1 and R.sup.2 may form a nitrogen-containing heterocyclic ring together with the adjacent nitrogen atoms, R.sup.3 is H or an acyl group, R.sup.4 is H or an aralkyl group, and R.sup.5 is an aromatic hydrocarbon group or aralkyl group which may be substituted, or R.sup.5 may form an amino acid residue, which may be protected, together with the adjacent nitrogen atom, or a salt thereof, and a medicine comprising the derivative as an active ingredient; and this compound has an inhibiting activity against cathepsin, and particularly, specifically inhibits cathepsin L and is hence useful for prevention and treatment of osteopathy such as osteoporosis.
该发明涉及一种由一般式(1)表示的环氧琥珀酰胺衍生物 ##STR1## 在该式中,R.sup.1和R.sup.2相同或不同,分别代表H或芳香烃基或芳基烷基,可以被取代,或R.sup.1和R.sup.2可以与相邻氮原子一起形成含氮杂环,R.sup.3为H或酰基,R.sup.4为H或芳基烷基,R.sup.5为芳香烃基或芳基烷基,可以被取代,或R.sup.5可以与相邻氮原子一起形成氨基酸残基,可以被保护,或其盐,以及包含该衍生物作为活性成分的药物;该化合物对半胱氨酸蛋白酶具有抑制活性,特别是特异性抑制半胱氨酸蛋白酶L,因此对于预防和治疗骨病如骨质疏松症非常有用。