Novel compounds that find use as imaging agents within nuclear medicine applications (PET imaging) for imaging of cardiac innervation are disclosed. These PET based radiotracers may exhibit increased stability, decreased NE release (thereby reducing side effects), improved quantitative data, and/or high affinity for VMAT over prior radiotracers. Methods of using the compounds to image cardiac innervation are also provided. In some instances the compounds are developed by derivatizing certain compounds with
18
F in a variety of positions: aryl, alkyl, a keto, benzylic, beta-alkylethers, gamma-propylalkylethers and beta-proplylalkylethers. Alternatively or additionally, a methyl group a is added to the amine, and/or the catechol functionality is either eliminated or masked as a way of making these compounds more stable.
COMPOSITIONS, METHODS, AND SYSTEMS FOR THE SYNTHESIS AND USE OF IMAGING AGENTS
申请人:Radeke Heike S.
公开号:US20140328756A1
公开(公告)日:2014-11-06
The present invention relates to systems, compositions, and methods for the synthesis and use of imaging agents, or precursors thereof. An imaging agent precursor may be converted to an imaging agent using the methods described herein. In some cases, the imaging agent is enriched in
18
F. In some cases, an imaging agent may be used to image an area of interest in a subject, including, but not limited to, the heart, cardiovascular system, cardiac vessels, brain, and other organs. In some embodiments, methods and compositions for assessing perfusion and innervation mismatch in a portion of a subject are provided.
Novel compounds that find use as imaging agents within nuclear medicine applications (PET imaging) for imaging of cardiac innervation are disclosed. These PET based radiotracers may exhibit increased stability, decreased NE release (thereby reducing side effects), improved quantitative data, and/or high affinity for VMAT over prior radiotracers. Methods of using the compounds to image cardiac innervation are also provided. In some instances the compounds are developed by derivatizing certain compounds with 18F in a variety of positions: aryl, alkyl, a keto, benzylic, beta-alkylethers, gamma-propylalkylethers and beta-proplylalkylethers. Alternatively or additionally, a methyl group a is added to the amine, and/or the catechol functionality is either eliminated or masked as a way of making these compounds more stable.
本研究公开了在核医学应用(PET 成像)中用作心脏神经支配成像剂的新型化合物。这些基于 PET 的放射性racer 与之前的放射性racer 相比,可表现出更高的稳定性、更少的 NE 释放(从而减少副作用)、更好的定量数据和/或对 VMAT 的高亲和力。还提供了使用这些化合物对心脏神经支配进行成像的方法。在某些情况下,这些化合物是通过在芳基、烷基、酮基、苄基、β-烷基醚、γ-丙基烷基醚和β-丙烯基烷基醚等不同位置上用 18F 对某些化合物进行衍生而得到的。另外,还可以在胺中加入甲基,和/或消除或掩盖儿茶酚官能团,使这些化合物更加稳定。
N-[3-BROMO-4-(3- [18F]FLUOROPROPOXY)-BENZYL]-GUANIDINE FOR IMAGING CARDIAC INNERVATION