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Rapid synthesis of a 5'-fluorinated oligodeoxy-nucleotide: a model antisense probe for use in imaging with positron
D Pan1, S S Gambhir, T Toyokuni
1Crump Institute for Biological Imaging, Department of Molecular and Medical Pharmacology, UCLA School of Medicine 90095-1770, USA.
Bioorganic & Medicinal Chemistry Letters
|January 1, 1999
Abstract:
5'-Deoxy-5'-fluoro-O4-methylthymidine was synthesized by the reaction of the corresponding 5'-O-tosylate with KF in the presence of Kryptofix [222] and coupled to a 5'-phosphoramidite-activated CPG-bound oligodeoxynucleotide. The sequence of reactions and purifications were accomplished within 4 h, a necessary condition of the development of radiofluorinated antisense oligodeoxynucleotide probe for use with PET.