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A phosphoramidite has been produced for labelling oligonucleotides with DNP groups at thymidine sites during solid-phase synthesis. The dinitrophenylamino group is attached via a caproamidopropargyl group to the 5-position of uracil. A related DNP-labelling phosphoramidite has been synthesised where the propargyl group is replaced by propyl. Both phosphoramidites have been used to synthesises DNP-labelled oligonucleotides. A related DNP-labelled deoxyuridine triphosphate has also been synthesised. DNP labelled oligonucleotide probes are valuable in diagnostic applications for the antibody-based detection of DNA and RNA.


Journal article


Biomedical peptides, proteins & nucleic acids : structure, synthesis & biological activity

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