申请人:Kuraray Co., Ltd.
公开号:US05360914A1
公开(公告)日:1994-11-01
Provided are novel superoxide dismutase derivatives represented by the following general formula (I) ##STR1## wherein [SOD] is a superoxide dismutase residue derived by removal of two mercapto groups, and W is a divalent long chain hydrocarbon residue which may optionally be interrupted by one or more groups each independently selected from the group consisting of an oxygen atom, a sulfur atom and a group of -N(R)- (R being a lower alkyl group). The SOD derivatives retain most of the enzymatic activities of unmodified SOD and have much longer plasma half-life than unmodified SOD. They are effective for treating various diseases caused by active oxygen species. Also provided are chemical modifiers to prepare the above SOD derivatives.
提供了以下一般式(I)所表示的新型超氧化物歧化酶衍生物:##STR1## 其中[SOD]是去除两个巯基团而得到的超氧化物歧化酶残基,W是一个二价的长链烃基残基,其可以选择性地被一个或多个分别从氧原子、硫原子和-N(R)-(R为低碳基)的群组中选择的基团所中断。这些SOD衍生物保留了未经改性的SOD的大部分酶活性,并且比未经改性的SOD具有更长的血浆半衰期。它们对于治疗由活性氧物种引起的各种疾病是有效的。此外,还提供了化学修饰剂来制备上述SOD衍生物。