Rapid synthesis of a 5'-fluorinated oligodeoxy-nucleotide: a model antisense probe for use in imaging with positron emission tomography (PET).
D Pan, S S Gambhir, T Toyokuni, M R Iyer, N Acharya, M E Phelps, J R Barrio
Index: Bioorg. Med. Chem. Lett. 8(11) , 1317-20, (1998)
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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.
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