The present invention provides a method for preparing [
18
F]—N-(4-fluorobutyl)ethacrynic amide which is prepared from radiofluorination and deprotection of the precursor tosylate N-Boc-N-[4-(toluenesulfonyloxy)-butyl)ethacrynic amide], obtained from ethacrynic acid via 6-step synthesis in 39% yield, in a radiochemical yield of 44%, aspecific activity of 48 GBq/μmol and radiochemical purity of 98%. The present invention further provides a composition for positron emission tomography (PET) of an animal models of a tumor liver or a liver disease, comprising [
18
F]—N-(4-fluorobutyl)ethacrynic amide and a pharmaceutically acceptable carrier.
本发明提供了一种制备[18F]-N-(4-
氟丁基)乙
丙烯酰胺的方法,该方法是通过对前体对
甲苯磺酸酯N-Boc-N-[4-(
甲苯磺酰氧基)-丁基)乙
丙烯酰胺进行放射
氟化和脱保护而制备的,该前体是从乙
丙烯酸经过6步合成得到,收率为39%,放射
化学收率为44%,比活度为48GBq/μmol,放射
化学纯度为98%。本发明还提供了一种用于肿瘤肝脏或肝脏疾病动物模型的正电子发射断层扫描(PET)的组合物,包括[18F]-N-(4-
氟丁基)乙
丙烯酰胺和一种药用可接受载体。