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    • 1. 发明授权
    • Imaging agents
    • 成像剂
    • US08834841B2
    • 2014-09-16
    • US13857164
    • 2013-04-05
    • Emory University
    • Mark M. Goodman
    • A61K51/00A61M36/14C07B59/00C07D345/00C07D291/04A61K51/04C07C229/48C07F13/00
    • C07C229/48A61K51/0402A61K51/0406C07B59/001C07C2601/04C07D291/04C07D345/00C07F13/005
    • The present invention provides novel amino acid compounds useful in detecting and evaluating brain and body tumors. These compounds have the advantageous properties of rapid uptake and prolonged retention in tumors and can be labeled with 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. These compounds can also be labeled with technetium and rhenium isotopes using known chelation complexes. The compounds disclosed herein bind tumor tissues in vivo with high specificity and selectivity when administered to a subject. Preferred compounds show a target to non-target ratio of at least 2:1, are stable in vivo and substantially localized to target within 1 hour after administration. Preferred compounds include 1-amino-2-[18F]fluorocyclobutyl-1-carboxylic acid (2-[18F]FACBC) and 1-amino-2-[18]fluoromethylcyclobutyl-1-carboxylic acid (2-[18F]FMACBC). The labeled amino acid compounds of the invention are useful as imaging agents in detecting and/or monitoring tumors in a subject by PET or SPECT.
    • 本发明提供了可用于检测和评估脑和体肿瘤的新型氨基酸化合物。 这些化合物具有在肿瘤中快速吸收和延长保留的有利特性,并可用卤素同位素如氟-18,碘-123,碘-124,碘-125,碘-131,溴-75,溴-76 ,溴-77,溴-82,ast ine -21,ast ine -211和其他ast同位素。 这些化合物也可以使用已知的螯合络合物用锝和铼同位素标记。 当给予受试者时,本文所公开的化合物以高特异性和选择性在体内结合肿瘤组织。 优选的化合物显示至少2:1的目标与非目标比例,在给药后1小时内在体内是稳定的并且基本上定位于靶标上。 优选的化合物包括1-氨基-2- [18 F]氟代环丁基-1-羧酸(2- [18 F] FACBC)和1-氨基-2- [18]氟甲基环丁基-1-羧酸(2- [18 F] FMACBC) 。 本发明的标记氨基酸化合物可用作通过PET或SPECT检测和/或监测受试者的肿瘤的成像剂。