Preparation and biodistribution of 1-[2-(3-[125I]iodo-4-aminophenyl)ethyl]-4-[3-(trifluoromethyl)phenyl]piperazine and 1-[2-(3-[125I]iodo-4-azidophenyl)ethyl]-4-[3-(trifluoromethyl)phenyl]piperazine
作者:Sumalee Chumpradit、Hank F. Kung、Jeffrey Billings、Yu Zhi Guo、Yang Wu、Jean Shih
DOI:10.1021/jm00123a006
日期:1989.3
The iodinated analogue of 1-[2-(4-aminophenyl)ethyl]-4-[3-(trifluoromethyl)phenyl]piperazine (PAPP), IPAPP (4), and the corresponding azido compound azido-IPAPP (5) were synthesized. The corresponding no-carrier-added 125I (T1/2 = 60 days, 35-60 keV) labeled compounds were also prepared. High specific binding was observed from in vitro binding studies using rat brain tissue preparation; Ki = 20 and
合成了1- [2-(4-氨基苯基)乙基] -4- [3-(三氟甲基)苯基]哌嗪(PAPP),IPAPP(4)和相应的叠氮基化合物叠氮基-IPAPP(5)的碘代类似物。还制备了相应的无载体添加的125 I(T1 / 2 = 60天,35-60 keV)标记的化合物。使用大鼠脑组织制剂进行的体外结合研究显示出高特异性结合。相对于[3H] -5-HT,Ki = 20和17.5nM。大鼠体内生物分布研究表明,叠氮基[125I] IPAPP穿过完整的血脑屏障并位于大脑中。大鼠脑切片的体外放射自显影显示出弥散性摄取模式,这可能是由于特异性和非特异性结合所致。结果表明,IPAPP和叠氮基IPAPP可能不适合在大脑中对5-羟色胺受体成像。