A New Highly Reactive and Low Lipophilicity Fluorine-18 Labeled Tetrazine Derivative for Pretargeted PET Imaging
作者:Outi Keinänen、Xiang-Guo Li、Naveen K. Chenna、Dave Lumen、Jennifer Ott、Carla F. M. Molthoff、Mirkka Sarparanta、Kerttuli Helariutta、Tapani Vuorinen、Albert D. Windhorst、Anu J. Airaksinen
DOI:10.1021/acsmedchemlett.5b00330
日期:2016.1.14
A new 18F-labeled tetrazine derivative was developed aiming at optimal radiochemistry, fast reaction kinetics in inverse electron-demand Diels–Alder cycloaddition (IEDDA), and favorablepharmacokinetics for in vivo bioorthogonal chemistry. The radiolabeling of the tetrazine was achieved in high yield, purity, and specific activity under mild reaction conditions via conjugation with 5-[18F]fluoro-5-deoxyribose
Synthesis, Radiosynthesis, and
<i>in vitro</i>
Studies on Novel Hypoxia PET Tracers Incorporating [
<sup>18</sup>
F]FDR
作者:Manuele Musolino、Ian N. Fleming、Lutz F. Schweiger、David O'Hagan、Sergio Dall'Angelo、Matteo Zanda
DOI:10.1002/ejoc.202001670
日期:2021.3.5
The synthesis of five radiotracers incorporating different oxyamine spacers between the hypoxia‐reactive 2‐nitroimidazole moiety and the [18F]FDR (2‐fluorodeoxyribose) prosthetic group is described. The lead compound – carrying a cyclopropyl spacer – displayed superior uptake kinetics and similar selectivity for hypoxic cells relative to the gold standard hypoxia tracers [18F]FAZA and [18F]FMISO.
Translating the concept of peptidelabeling with 5-deoxy-5-[<sup>18</sup>F]fluororibose into preclinical practice: <sup>18</sup>F-labeling of Siglec-9 peptide for PET imaging of inflammation
作者:Xiang-Guo Li、Anu Autio、Helena Ahtinen、Kerttuli Helariutta、Heidi Liljenbäck、Sirpa Jalkanen、Anne Roivainen、Anu J. Airaksinen
DOI:10.1039/c3cc40738a
日期:——
VAP-1 binding peptide Siglec-9 was glycosylated with 5-deoxy-5-[18F]fluororibose and used for in vivo PET imaging of experimental inflammation.
this work we describe the synthesis of the first 18F-labeled probes potentially suitable for PETimaging of claudin-4 expression. These probes were prepared using oxime ligation of 5-[18F]fluoro-5-deoxyribose (5-[18F]FDR) to claudin selective peptides. As a proof-of-principle, one of them, 5-[18F]FDR-Clone 27, was isolated in >98% radiochemical purity and in 15% radiochemical yield (EOB) within 98 min
Fluorinase mediated C–18F bond formation, an enzymatic tool for PET labelling
作者:Hai Deng、Steven L. Cobb、Antony D. Gee、Andrew Lockhart、Laurent Martarello、Ryan P. McGlinchey、David O'Hagan、Mayca Onega
DOI:10.1039/b516861a
日期:——
The fluorinase enzyme from S. cattleya is applied as a catalyst for the efficient incorporation of [18F]-fluoride into [18F]-5â²-fluoro-5â²-deoxyadenosine, [18F]-5â²-fluoro-5â²-deoxyinosine and [18F]-5-fluoro-5-deoxyribose for positron emission tomography (PET) applications.