申请人:The Regents of the University of California
公开号:US04647446A1
公开(公告)日:1987-03-03
A method for detecting the blood flow in animals, particularly in the brain, is provided wherein a detectable amount of a novel radioactive compound of the formula I is administered to one animal: ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl of 1 to 6 carbon atoms or benzyl; R.sub.3 is alkyl of 1 to 6 carbon atoms, benzyl, cyclopropylalkyl of 4 to 6 carbon atoms, or cyanoalkyl of 2 to 6 carbon atoms; R.sub.4 is hydrogen, benzyl or alkyl of 1 to 6 carbon atoms; with the provisos that R.sub.4 is not isopropyl and when R.sub.4 is methyl, R.sub.3 is not benzyl; and X is a radioactive halogen.
提供一种检测动物血流的方法,特别是在大脑中,其中向一只动物注射了一定量的具有以下式I的新放射性化合物:##STR1## 其中R.sub.1和R.sub.2分别是1至6个碳原子的烷基或苄基;R.sub.3是1至6个碳原子的烷基、苄基、4至6个碳原子的环丙基烷基或2至6个碳原子的氰基烷基;R.sub.4是氢、苄基或1至6个碳原子的烷基;但要求R.sub.4不是异丙基,当R.sub.4是甲基时,R.sub.3不是苄基;X是放射性卤素。