申请人:TAIHO PHARMACEUTICAL COMPANY, LIMITED
公开号:EP0921122A1
公开(公告)日:1999-06-09
The invention relates an epoxysuccinamide derivative represented
by a formula (I): wherein R1 represents a hydrogen atom, an alkyl or aminoalkyl group, R2 represents an aminoalkyl group which may be substituted, an aryl group which may be substituted, a heterocyclic group which may be substituted, an aralkyl group which may be substituted, or an alkyl group substituted by a heterocyclic ring which may be substituted, or R1 and R2 may form a nitrogen-containing heterocyclic ring, which may be substituted, together with the adjacent nitrogen atoms, and R3 and R4 are the same or different from each other and independently represent a hydrogen atom, or an alkyl or aralkyl group, or a salt thereof, a preparation process thereof, and a medicine comprising such a derivative or salt as an active ingredient. This compound has a specific inhibitory activity for cathepsin L and family enzymes thereof, and is useful as an agent for preventing and treating metabolic osteopathy such as osteoporosis and hypercalcemia.
本发明涉及一种环氧琥珀酰胺衍生物,由式(I)表示
由式(I)表示:其中 R1 代表氢原子、烷基或氨基烷基,R2 代表可被取代的氨基烷基、可被取代的芳基、可被取代的杂环基、可被取代的芳烷基或被可被取代的杂环取代的烷基、或 R1 和 R2 可与相邻的氮原子一起形成可被取代的含氮杂环,且 R3 和 R4 彼此相同或不同,并独立代表氢原子或烷基或芳烷基,或其盐,其制备方法,以及包含这种衍生物或盐作为有效成分的药物。该化合物对 cathepsin L 及其家族酶具有特异性抑制活性,可作为预防和治疗骨质疏松症和高钙血症等代谢性骨病的药物。