申请人:Goodman M. Mark
公开号:US20050192458A1
公开(公告)日:2005-09-01
The invention provides novel amino acid compounds of use in detecting and evaluating brain and body tumors. These compounds combine the advantageous properties of α-aminoisobutyric acid (AIB) analogs namely, their rapid uptake and prolonged retention in tumors with the properties of halogen sustituents, including certain useful halogen isotopes such as fluorine-18, iodine-123, iodine-124, iodine-125, iodine-131, bromine-75, bromine-76, bromine-77, bromine-82, astatine-210, astatine-211, and other astatine isotopes. In addition the compounds can be labeled with technetium and rhenium isotopes using known chelation complexes. The amino acid compounds disclosed herein have a high specificity for target sites when administered to a subject in vivo. Preferred amino acid compounds include [
18
F] FAMP, ([
18
F]5a) and [
18
F]N-MeFAMP, ([
18
F]5b). The invention further features pharmaceutical compositions comprised of an α-amino acid moiety attached to eiher a four, five or a six member carbon-chain ring. The labeled amino acid compounds are useful as imaging agents in detecting and/or monitoring tumors in a subject by Positron Emission Tomography (PET) and Single Photon Emission Computer Tomography (SPECT).
该发明提供了一种新型氨基酸化合物,用于检测和评估大脑和身体肿瘤。这些化合物结合了α-氨基异丁酸(AIB)类似物的有利特性,即它们在肿瘤中的快速摄取和长时间滞留,以及卤素取代物的特性,包括某些有用的卤素同位素,如氟-18、碘-123、碘-124、碘-125、碘-131、溴-75、溴-76、溴-77、溴-82、砹-210、砹-211和其他砹同位素。此外,这些化合物可以使用已知的螯合配合物标记为锝和铼同位素。本文披露的氨基酸化合物在体内给予受试者时对靶位点具有高特异性。优选的氨基酸化合物包括[18F] FAMP,([18F]5a)和[18F]N-MeFAMP,([18F]5b)。该发明进一步涉及由α-氨基酸基团连接到四、五或六元碳链环的药物组合物。标记的氨基酸化合物可用作影像剂,通过正电子发射断层扫描(PET)和单光子发射计算机断层扫描(SPECT)检测和/或监测受试者体内的肿瘤。