申请人:Wadsworth Harry John
公开号:US20110190618A1
公开(公告)日:2011-08-04
The present invention concerns in vivo imaging and in particular in vivo imaging of the peripheral benzodiazepine receptor (PBR). A tetracyclic indole in vivo imaging agent is provided that binds with high affinity to PBR, has good uptake into the brain following administration, and which preferentially binds to tissues expressing higher levels of PBR. The present invention also provides a precursor compound useful in the synthesis of the in vivo imaging agent of the invention, as well as a method for synthesis of said in vivo imaging agent comprising use of said precursor compound, and a kit for carrying out said method. A cassette for the automated synthesis of the in vivo imaging agent is also provided. In addition, the invention provides a radiopharmaceutical composition comprising the in vivo imaging agent of the invention, as well as methods for the use of said in vivo imaging agent.
本发明涉及体内成像,特别是外周苯二氮平受体(PBR)的体内成像。提供了一种四环吲哚体内成像试剂,它具有高亲和力结合PBR,在给药后良好地吸收到大脑,并且优先结合表达更高水平PBR的组织。本发明还提供了用于合成本发明的体内成像试剂的前体化合物,以及一种合成上述体内成像试剂的方法,包括使用该前体化合物,并提供用于执行该方法的试剂盒。还提供了一种用于自动合成体内成像试剂的盒子。此外,本发明还提供了包含本发明的体内成像试剂的放射性药物组合物,以及使用该体内成像试剂的方法。