作者:Hank Kung、Monte Blau
DOI:10.1021/jm00184a012
日期:1980.10
lipid solubility (1-octanol/buffer distribution coefficient) was measured for each labeled compound. Biodistribution studies in rats showed high brain uptake for the tertiary diamines, especially for 3 and 4 (1.53 and 1.49% dose/organ, respectively, at 30 min after iv injection). The permanently charged bisquaternary amine, bis[beta-(N,N,N-trimethylammonio)ethyl] selenide (5), showed negligible brain uptake
硒75标记的叔二胺,双[β-(N,N-二甲基氨基)乙基]硒化物(1),双[β-(N,N-二异丙基氨基)乙基]硒化物(2),双(β-哌啶子基乙基)硒化物(3)和双(β-吗啉代乙基)硒化物(4)是通过用硼氢化钠还原[75Se]亚硒酸并使该中间体与N,N-二取代的氨基乙基氯化物反应制备的。测量每种标记化合物的pH值对脂质溶解度的影响(1-辛醇/缓冲液分配系数)。大鼠的生物分布研究表明,叔二胺的大脑摄取量很高,尤其是3和4(静脉注射后30分钟分别为1.53和1.49%剂量/器官)。永久带电荷的双季胺,双[β-(N,N,N-三甲基铵)乙基]硒化物(5),表现为可忽略的大脑摄取(在30分钟时为0.06%剂量/器官)。