Abstract:
:This study describes the synthesis and radiosynthesis of eight new [18F]fluoro-inositol-based radiotracers in myo- and scyllo-inositol configuration. These radiotracers are equipped with a propyl linker bearing fluorine-18. This fluorinated arm is either on a hydroxyl group, i.e. O-alkylated inositols, or on the cyclohexyl backbone, i.e. C-branched derivatives. To modulate lipophilicity, inositols were synthesized in acetylated or hydroxylated form. Automated radiosynthesis was performed on the AllInOne module and the radiotracers were produced in good radiochemical yields (15-31.5% dc). Preliminary in vivo preclinical evaluation of these eight [18F]fluoro-inositols as Positron Emission Tomography (PET) imaging agents in a breast tumour-bearing mouse model was performed and compared with [18F]-2-fluoro-2-deoxy-d-glucose ([18F]FDG). Amongst the different inositols, [18F]myo-2 showed the highest tumour uptake 2.34±0.39%ID/g, revealing the potential of this tracer for monitoring breast cancer.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Collet C,Schmitt S,Maskali F,Clément A,Chrétien F,Karcher G,Marie PY,Poussier S,Lamandé-Langle Sdoi
10.1016/j.bmc.2017.08.035subject
Has Abstractpub_date
2017-10-15 00:00:00pages
5603-5612issue
20eissn
0968-0896issn
1464-3391pii
S0968-0896(17)30724-1journal_volume
25pub_type
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