title: A fluorous and click approach for screening potential PET probes: Evaluation of potential hypoxia biomarkers.
abstract: Radiopharmaceuticals for nuclear imaging are essentially targeting molecules, labeled with short-lived radionuclides (e.g., F-18 for PET). A significant drawback of radiopharmaceuticals development is the difficulty to access radiolabeled molecule libraries for initial in vitro evaluation, as radiolabeling has to be optimized for each individual molecule. The present paper discloses a method for preparing libraries of (18)F-labeled radiopharmaceuticals using both the fluorous-based (18)F-radiochemistry and the Huisgen 1,3-dipolar (click) conjugation reaction. As a proof of concept, this approach allowed us to obtain a series of readily accessible (18)F-radiolabeled nitroaromatic molecules, for exploring their structure-activity relationship and further in vitro evaluation of their hypoxic selectivity.
authors: Chemistry Research Laboratory, University of Oxford, Mansfield Road, OX1 3TA Oxford, UK. romain_bejot@sbic.a-star.edu.sg
authors: Romain
authors: R
authors: Bejot
authors: Laurence
authors: L
authors: Carroll
authors: Kishore
authors: K
authors: Bhakoo
authors: Jérôme
authors: J
authors: Declerck
authors: Veronique
authors: V
authors: Gouverneur
mesh_terms: D001386:Azides / Q000138:chemical synthesis / Q000737:chemistry / Q000493:pharmacokinetics; D015415:Biomarkers / Q000378:metabolism*; D015687:Cell Hypoxia; D045744:Cell Line, Tumor; D057930:Click Chemistry; D005462:Fluorine Radioisotopes / Q000737:chemistry; D006801:Humans; D007553:Isotope Labeling; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals / Q000138:chemical synthesis / Q000737:chemistry* / Q000493:pharmacokinetics; D013329:Structure-Activity Relationship
chemical_list: D001386:Azides; D015415:Biomarkers; D005462:Fluorine Radioisotopes; D019275:Radiopharmaceuticals