We synthesized N,N′,N″,N‴-tetraalkylcyclam derivatives in which alkyl groups were ethyl, propyl, butyl, methoxyethyl, and ethoxyethyl. We attempted to label the compounds with 99mTc. The cyclams with methyl, ethyl, and propyl could be labelled. The labelled N,N′,N″,N‴-tetraalkylcyclam derivatives showed +1 charge. They excreted rapidly through the kidney in mice. The liver-uptake increased slightly as the lipophilicity increased. However, the myocardial uptake was low unlikely with the +1 charged myocardial imaging agents. Copyright © 2001 John Wiley & Sons, Ltd.
我们合成了 N,N′,N″,N‴-四烷基
环丙胺衍
生物,其中的烷基包括乙基、丙基、丁基、甲
氧基乙基和乙
氧基乙基。我们尝试用 99mTc 标记这些化合物。含有
甲基、乙基和丙基的
环戊烷可以被标记。被标记的 N,N′,N″,N‴-四烷基
环丙烷衍
生物显示+1电荷。它们在小鼠体内通过肾脏迅速排泄。随着亲脂性的增加,肝脏摄取量也略有增加。不过,心肌摄取量较低,这与+1电荷心肌成像剂的摄取量不同。Copyright © 2001 John Wiley & Sons, Ltd. All Rights Reserved.