@article{2935041,
    title = "exo-N-[2-(4-Azido-2,3,5,6-tetrafluorobenzamido)ethyl]-dC: a novel intermediate in the synthesis of dCTP derivatives for photoaffinity labelling",
    author = "Crina Cismas and Thanasis Gimisis",
    journal = "TETRAHEDRON LETTERS",
    year = "2008",
    volume = "49",
    number = "8",
    pages = "1336--1339",
    publisher = "ELSEVIER BV",
    issn = "0040-4039",
    doi = "10.1016/j.tetlet.2007.12.083",
    keywords = "3,5,6-tetrafluorobenzamide derivatives,[4-Azido-2",
    abstract = "An alternative route for the synthesis of a photoaffinity labelling (PAL) dCTP derivative is reported. This method involves the intermediacy of exo-N-[2-(4-azido-2,3,5,6-tetrafluorobenzamido)ethyl]-dC. The latter is prepared from the coupling of known N-(2-aminoethyl)-4-azido-2,3,5,6-tetrafluorobenzamide, prepared in an improved three-step sequence, with an activated 4-triazolyl derivative of dU, followed by deprotection. 19F NMR spectroscopy proved extremely useful in following the synthetic transformations, and enabled control of any adventitious reduction of the azides.  2007 Elsevier Ltd. All rights reserved."
}