Described herein are single and dual modality bisphosphonate conjugated imaging probes. Also described herein are methods of synthesizing and using the single and dual modality bisphosphonate conjugated imaging probes.
Use of SF 6 for the production of electrophilic 18 F-fluorination reagents
作者:Anna Krzyczmonik、Thomas Keller、Anna K. Kirjavainen、Salla Lahdenpohja、Sarita Forsback、Olof Solin
DOI:10.1016/j.jfluchem.2017.10.010
日期:2017.12
out in two different matrix gases: Ne and Xe. The electrophilic 18F-fluorination reagent produced was used for the labelling of two model compounds (6-[18F]fluoro-L-DOPA and [18F]Selectfluor bis(triflate)) in order to prove its feasibility. This proof-of-concept study showed that SF6 in Xe can be used in place of F2 for the production of electrophilic [18F]F2 gas. When SF6 in Ne was used only trace amounts
NHC-Copper Mediated Ligand-Directed Radiofluorination of Aryl Halides
作者:Liam S. Sharninghausen、Allen F. Brooks、Wade P. Winton、Katarina J. Makaravage、Peter J. H. Scott、Melanie S. Sanford
DOI:10.1021/jacs.0c02637
日期:2020.4.22
which the C(sp2)-18F bond is formed via a copper-mediated pathway. Copper N-heterocyclic carbene complexes serve as mediators for this transformation, using aryl halide substrates with directing groups at the ortho position. This reaction is applied to the radiofluorination of electronically diverse aryl halide derivatives, including the bioactive molecules vismodegib and PH-089.
[18F]β-CFT is a positron emission tomography (PET) ligand for imaging of dopamine transporter. It was proved to be a sensitive PET marker to detect presynaptic dopaminergic hypofunction in Parkinson's disease. In recent years, copper-mediated 18F-fluorination of aryl boronic esters has been successful in some molecules containing aromatic groups. In this study, we describe the novel synthetic strategy of [18F]β-CFT by copper-mediated nucleophilic radiofluorination with pinacol-derived aryl boronic esters upon reaction with [18F]KF/K222 and Cu (OTf)2(py)4. The radiolabeling protocol was optimized with [18F]fluoride elution method and amount of copper catalyst used. [18F]β-CFT is obtained from boronic ester precursors in 2.2% to 10.6% non-isolated radiochemical yield (RCY). Purified [18F]β-CFT with >99% radiochemical purity (RCP) and high molar activity was obtained in validation runs. The radiolabeling procedure is straightforward and can easily be adapted for clinical use.
ANTI-MACROPHAGE MANNOSE RECEPTOR SINGLE VARIABLE DOMAINS FOR USE IN CARDIOVASCULAR DISEASES
申请人:VIB VZW
公开号:US20160024213A1
公开(公告)日:2016-01-28
The disclosure relates to the field of cardiovascular diseases. In particular, immunoglobulin single variable domains directed against macrophage mannose receptor (MMR) are provided that can be used in the diagnosis, prognosis and/or monitoring of cardiovascular diseases or as therapeutics. Also, the anti-macrophage mannose receptor (MMR) immunoglobulin single variable domains of the disclosure are useful at different stages of cardiovascular diseases, including post-infarction cardiovascular events. Further, the anti-macrophage mannose receptor (MMR) immunoglobulin single variable domains of the disclosure are particularly useful for the in vivo targeting and/or imaging of vulnerable atherosclerotic plaques.