Synthesis and preliminary in vivo evaluation of new [18F]fluoro-inositols as Positron Emission Tomography radiotracers.

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 Chem

authors

Collet C,Schmitt S,Maskali F,Clément A,Chrétien F,Karcher G,Marie PY,Poussier S,Lamandé-Langle S

doi

10.1016/j.bmc.2017.08.035

subject

Has Abstract

pub_date

2017-10-15 00:00:00

pages

5603-5612

issue

20

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(17)30724-1

journal_volume

25

pub_type

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