申请人:Taisho Pharmaceutical Co., Ltd.
公开号:US04507232A1
公开(公告)日:1985-03-26
This invention is directed to novel peptide derivatives. Said peptide derivatives are useful as a substrate for the activity assay of enzymes of the group EC 3. 4. 22, for example, cathepsin L, cathepsin B and cathepsin H. Said peptide derivatives which contain L-methionine radical are prepared according to the methods conventional in peptide chemistry. As typical examples are mentioned D-leucyl-L-tyrosyl-L-methionine-.beta.-naphthylamide formate, .beta.-alanyl-L-tyrosyl-L-methionine-.beta.-naphthylamide formate and succinyl-L-tyrosyl-L-methionine-p-nitroanilide.
这项发明涉及新型肽衍生物。所述肽衍生物可用作EC 3.4.22酶组的酶活性测定的底物,例如,半胱氨酸蛋白酶L、半胱氨酸蛋白酶B和半胱氨酸蛋白酶H。含有L-蛋氨酸基团的肽衍生物是根据肽化学中常规的方法制备的。典型例子包括D-亮氨酰-L-酪氨酰-L-蛋氨酸-β-萘酰胺甲酸酯、β-丙氨酰-L-酪氨酰-L-蛋氨酸-β-萘酰胺甲酸酯和琥珀酰-L-酪氨酰-L-蛋氨酸-p-硝基苯胺。